Question

f'(x)+g'(x)=0
f(x)=2x3+12x2
g(x)=9x2+72x

Answer 1

Ответ:

-4;3

Объяснение:

$f'(x)=6x^{2}+24x\\g'(x) =18x+72\\\\6x^{2}+24x =18x+72\\6x^{2} +6x-72=0\\x^{2} +x-12=0\\x_{1}+x_{2}=-1\\x_{1}*x_{2}=-12\\x_{1}=-4\\x_{2}=3$