Question

help

Answer 1

Set f'(x) equal to 0

\(2x^3-9x^2+7x+6=0\)

You can solve for x from there :)

Answer 2

\[2x^3-9x^2+7x+6=0\]
\[2x^3-4x^2-5x^2+10x-3x+6=0\]
\[2x^2(x-2)-5x(x-2)-3(x-2)=0\]
\[(x-2)(2x^2-5x-3)=0\]
\[(x-2)[2x^2-6x+x-3]=0\]
\[(x-2)[2x(x-3)+1(x-3)]=0\]
(x-2)(x-3)(2x+1)=0
x=?