Question

help me!!!!!!!!срочно
f(x)=x³+3x²​

Answer 1

Ответ:

$f(x) = x {}^{3} + 3x {}^{2} \\ 0 = x {}^{3} + 3x {}^{2} \\ x {}^{3} + 3x {}^{2} = 0 \\ x {}^{2} (x + 3) = 0 \\ 1)x {}^{2} = 0 \\ x = 0 \\ 2)x + 3 = 0 \\ x = - 3$