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OpenStudy (anonymous):
Find the zeros of the function. f(x) = 3x3 - 12x2 - 15x
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OpenStudy (tkhunny):
Factor factor factor. Let's see what you get.
OpenStudy (anonymous):
take 3x common \[\Large 3x(x^2-4x-5)=0\] \[\Large 3x=0\] \[\Large x^2-4x-5=0\] use quadratic formula for \[\Large x^2-4x-5=0\]
OpenStudy (anonymous):
@nezzy can you do this now?
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