CINXE.COM
Just a moment...
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'non-interactive',cRay: '9134916a6b98fe01',cH: 'geiWASvRJJgQMPGq4urSOtsmgWHOfVboYps1bvtKc0M-1739782626-1.2.1.1-nBQGBUKzLwU240Cre0_wiRcvfBH11cQd1wmofm8xACHH8zBxT6ArDBGJ4jE000ku',cUPMDTk: "\/abstracts\/search?q=cubic%20equation&__cf_chl_tk=Q3uisLm_7N9mgdWomMoty3moG027Jucx2mlH025rMtI-1739782626-1.0.1.1-ZFLjBroBAqIcKqZqVqea.ufzKrKN6YGqMB.32l_tsgw",cFPWv: 'b',cITimeS: '1739782626',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=cubic%20equation&__cf_chl_f_tk=Q3uisLm_7N9mgdWomMoty3moG027Jucx2mlH025rMtI-1739782626-1.0.1.1-ZFLjBroBAqIcKqZqVqea.ufzKrKN6YGqMB.32l_tsgw",md: "TLu3l9Q_h9H7Q7NfShoneDlPbAlXL0SCx.apERnngQc-1739782626-1.2.1.1-JmNCQUmrUEyCvVuz7aBvaIX_N1yg31lYZVHuyIuT9WQigZsWFMUyvoP98fXzX8NUTNbsu_OE_wwtxsub4HyVk_EVUFOHbnx8.e0mZWz4ga6akxG_kKwSgsIVUbbV6AJ6CFPulrl2LhB49WAXpW5D.V1K3GknaRVXiu1zL8FejZD.SNGZ7JncNBYYYmXFddtXt7BCwH5LKOn5ALXlwaidtHx3bgpyThDM4YD9n5lnIBLNMe4jMpZ_i3UvPIAD3_RihhkfybfAJ.kkXCz2ADXMtW_vDBkHrjSWmVdSteniJvHwHpSVCxrzXlSrw3gYP8Vm3g_jLZyCV7HRBlNRxl3I0HCcALG8EJjd2kcFPwiGvuegcTzMPwkj8PnUanmK6rCDGhbDArW8GemHHc8bc_CKIIPbqSUE3pfuKYhQzP26cCd9ccwA8c.6HL_A9Ar5GD.yXFSX0whJZo2msvlgMI5.IvoOLpfxkIpKzypGsrV3QMr5TQy0qMTzPYE6FxRIOZsPTupKowJmPHvN6telcHa81CCR8zNtWwrs.FeZrbgdCc0Y1FrT8XHwOIkc8GVkfYu8_tVlOBd7.QV81eIAFCv0VNZ.T3_GvxeQsqThVcEpLIOcCb1hBrHTQc5y9GK5OO0l3tgvcdZMqMBhGZbnBnRl7ayJD1V8tDyntIDqkRtkzgRJXrHHLgMAmnvVW7f_m1EzjN9BFFeqQSmOxWHu8vr3VLv.zOzVOShAbwJPUbot0u9Ve..DrHIK24CO.eK7_RGaneFaRePzjGlCLVOZG6AHgpTcacEIVH.KZscqEbnH2ISsWJaN46bP8Peq.d7uSmk6ftmg61E1IV1TQt_keBRojppiU23jVeDDWaKIxwDjBkldbybFqhVrAOHeMKnGLZHYbOb_5BdLU9SE4owNt1IdDHzn9oXW2KptDT5VS5iUIWl.yFOY2y6jm4Vd9TP8kqB0nMj6tqxrdcE_qcm3io3VPlLWW8Mn7W71tYFhPYBhZzkn.VOXnrwnNWd0BFNRNY7_n4MceBiZrBgFJl1FnhRQTyHbE3kIYFaK_4gU7fBGTtRO3hGfABosFVF_73Wy_kKcBT3vlgIkBXUp1Bmt8p_ba0.flbWO6wacObKeCZoElqQtVZHbOVtN8i9k7b0Gb74cU4DTuzB9U24ub3FozIpQJzmd9rN0qJJ5na9MNhcsG4MmQNUuhpJFahyPd9wVt0945uZ6t7.D2RXNRWODtJyhaonEP9VgOweus3Wk.exikEgrZFsXUjkLQkjQYr40JWQUWl4QrhpLSUuqda13maEFAp7OXr1rnu5ae5ZlwZ8qq2.PYSFxQzYliTNXI0jyTiGqdGqSxDRV7inGgssshVwKpmDjF1Zl.MuqhM_bVX2W38J5euMeKUdAO4WC3TER2pcaj0KQEdxGQpfPZzK1jNdPZ5Kjk99JKvUH2IvDGbjy7SLeXK6teqHCxIUDUeAW8MvoNo8Jz_AlJZf2m.ulpT3PKUzqu22sgZRaugfUTZUUNlsRRim47GL6ISKPZru742n4dfVK7gkwHF2936S4Q3Lr0rVPLS6bvvzHhCWLo_jY3.i_UYtRrLpBqrnKqvojBjp.qOQCuaUCwqFQJDNS67dBEzzL1f7Ir4K3ZW3IU_ghGXg81JQCMafAjkpuRO6jff.1uNrWNu7ru2Gn1GT0MhEpEIKT8DOd20T_7F0MRYzV2c1gxlb_L6Eb.5rxL0x4b_fqxhzrvxgh9gjYIw7todnYVCn8xx4D9mdskzmk2cV29FKpLgUNfVKsWLnvXLTtNbpUvpsH9kZ16oZGJ64uAw0sIOXF_K2Hejuov0H6wgO3wpwQHcfSqlVIgY3mq4RNqhefs_gqkPpfZjT8Md8ZCcW9ToKV1YhCrUoXNBsAzJtFg8pyUcXIPFMx7XTwgml8MyS3aQ5_WD6n77iE6CbcuI5nBcTqwOz17wARqSvqJfp8ABg",mdrd: "rCHhQSGR0I5it_jGKV.KtjTXsxYAk98FGJocefyfFJc-1739782626-1.2.1.1-i_ty.41i.V4I8HnQLaOZxAmhUfNICxKnU3Jvnr1sZih6cuf.9GF.ZJ_ErmVrqyxlVX7VcubQGNaoQGCqXk5F5EQGk51UmplXC.0HHYT9GwlUL7vfmOI3gTAqyu8vLkdF5joAOPXuOswsQjZ36aksQi2SjtnTjPNUQiujQYRBw8T9rmKXOK9efgmd5dK27KnMJ73XFfQzoCXUjfk8640KAxBaHbdCizjs3erDL0i.agMpKXOtqOGtutsVypa6JRjk9pUrC7X__WL_tXFrIobS8mdMV1xygnuesD1Czvi9h7fectM5nfJBAlbhO68HZelv_H5yPr1K8nROfN6FjKGy3Ur.YkmytEqiqmstCvaQhI.C8SUVPsZcTg70ZO9orCuh8OkGbrklZbQmbH3xjPiyvJ5l5TM20GrFoPwAoX.QuXY2jCNmDB7J6JH1K7M7QscNelEhqvlY99KhslbFG3xRmLtWGu.7n5QDDhYbb0RbiDERgZe2kIU3UJYQd13T57h0k2mkshAOW6p9b9nrlUNQxeX7Fe3tp3WGndJ_WADc_LhdmlUSf6EVW_HJtqGWJuNctuh5FhAGplV2sZCiJa8NKYTVyarsuyiP3SaINKrws4a6YwKRTUrvV9cipQkybGDAHsg1_cEZErrtaL6MiQ4.zH9.13diIsX9.wMKGyOYLYuplUdJRwBxImYBzDuf81SNXbRTBXNiCnBgdQuR0gs0tgHUz86AWOsVvFfznyOEVk_sjh7E8WN4lW.XVbMZ6Zfi1f9y07m6lEO0n10sHMkvnOVBfs_REV_zkhz2m_1EU.plQIVtU2UbVTqbhvDVfbFbfWYlKAxG67HrG.YByyNY3lgAIWnwPYUJDpumwymsXstXj56MnlpPWrQ.Yn5ZBHYifZ68CN84_vUePzVB8v1wqgxgtM9u7OQ2g0RHl5BuTATzsTF0k_IggEnmwoSAkeG449eV3FwAdg_dsHCFIgFHCdb3cpCjzfHbKhAwKRneO2X.gra8T.lW01P1pIGDKnprFzuuNJCmXXmrcLbj4DKS2HZxu4oI0kThSsmXmJ712nORD9eDw2RH2QMmGon6RllPrNytIKo91czYylQh6CYUHy_lME7YI7cTqWepuqBkVlyuN_aXINaBRmAj.HUfzp8yGzRgyJx9mW.0N0MsR.kh22szR53dyRwLJzw9s54N6o4a307SA2W.24NwLPfy26ocE4QHIlu58bbUMT3ldiXApGVzSfaDRf88ss8O7eMPcSJ7tnya7F_xAPzq0CfRfN065JTgP.Csb1OCA.L31MW16qyw1NAnfK6cC.rRQHC51adPxUhB_Kro4Hbrx.R1W1xDqC_ETN3uoxB_pmm.yuMp1M03oGhQXEJ15FHYmPFTye3QpRm7QIMTfZ9pQUMyEpL3gMWH6B0Ub6L5DbEctCB.VnD7hNgLpM6CfFRd.F4fC2UFWFFPlDha_QckLHLDDyZgvY6EDFCsgb9ivnDA2Zkj1rby_bCWjwLQQrli7FEuN.sBk6SbTmAqw2cBXTlU7z015nsr2X5ypsDGMgsF_ZsmE8sRIT2YwNCNlUjRBXibBTzx1XJKtvm5.AgGY4qQBoLUupQfVI8r1qwWPHJGFjuxkXGjYUWsR6gpOQT75UMMpsdMafqbSYd29coFJ33gxkXnbA.rDetYRIZEe2i.kmdb06eXj5d_ScHjshn2.7SPd6mfVDOfos.CqM91JSfihQTCTmKpKdIufSd.YRyqUS9a9E4_eC3Sk4nrEuJDvVeBsNxuAnGy48PZD98OCtLtMl8IBcvkGpuBs0MtJ5y2dItQR8SffVFKixnzRPDHLbXp9nk9KQeGIfcxK1_F3zcvXOj4SwD89.ufL2B9IKWetkNchUM4xRHOfNIKm25wsvbQS7c5E_2MTQ.KeP5I31YetF3CqnZGqq3nqF8b8hAX9z2wxj1I_f.64xjhi.AAI2osuSBgmjiL6yM4OuTlNVL31aEGqD.s0.oeT3of3Ii9xOPlgQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134916a6b98fe01';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/search?q=cubic%20equation&__cf_chl_rt_tk=Q3uisLm_7N9mgdWomMoty3moG027Jucx2mlH025rMtI-1739782626-1.0.1.1-ZFLjBroBAqIcKqZqVqea.ufzKrKN6YGqMB.32l_tsgw" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>