solving a cubic equation Watch

Twiglet
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#1
Report Thread starter 12 years ago
#1
how would I solve this equation? I have tried using the f(x)=0 rule, but it aint working

a^3 +16a -15 =0

thank youuu xxx
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UglyDuckling
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a = 0.8929933691
a = -0.4464966846+4.074073866i
a = -0.4464966846-4.074073866i
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Codefusion
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are you sure these are the right signs ,cause this way it seems the solution is a fraction.
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Twiglet
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#4
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ooo sorry, just realised my mistake maths is getting to me
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