Current Events > I'm attempting to solve a cubic of the form x^3+bx=c

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FLOUR 09/15/18 9:14:29 AM #1:	Where b > 0. That's a huge requirement. There's only one real solution as a result. Why? Anyways, define k to be the square root of (81c^2+12b^3) Then x = the cube root of [(c/2)+(k/18)] + the cube root of [(c/2)-(k/18)] Is this right? Kind of an ugly solution but it appears to work. If b < 0 then it gets even more ugly as k could be an imaginary number as a result and the computation becomes a disaster. -- --- I wanna be a Hulkamaniac, have fun with my family and friends. <cite>FLOUR posted [p:908796646] in I'm attemp... [t:77005201]...</cite> <quote>Where b > 0. That's a huge requirement. There's only one real solution as a result. Why? Anyways, define k to be the square root of (81c^2+12b^3) Then x = the cube root of [(c/2)+(k/18)] + the cube root of [(c/2)-(k/18)] Is this right? Kind of an ugly solution but it appears to work. If b < 0 then it gets even more ugly as k could be an imaginary number as a result and the computation becomes a disaster. --</quote> ... Copied to Clipboard!
SageHarpuia 09/15/18 9:15:29 AM #2:	24 --- "You will pay dearly for your futile resistance!" <cite>SageHarpuia posted [p:908796671] in I'm attemp... [t:77005201]...</cite> <quote>24</quote> ... Copied to Clipboard!
clearaflagrantj 09/15/18 9:16:46 AM #3:	Man I completed Calc 1-3 and ODE/PDE and I remember none of this shit <cite>clearaflagrantj posted [p:908796712] in I'm attemp... [t:77005201]...</cite> <quote>Man I completed Calc 1-3 and ODE/PDE and I remember none of this shit</quote> ... Copied to Clipboard!
frozenshock 09/15/18 9:17:40 AM #4:	Yep. Semester started. --- I don't hate people, people hate me. <cite>frozenshock posted [p:908796732] in I'm attemp... [t:77005201]...</cite> <quote>Yep. Semester started.</quote> ... Copied to Clipboard!
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