Question

If (x + 2) is a factor of x^3 − 6x^2 + kx + 10, k =?

Answer 1

\(\large \begin{align} \color{black}{
\normalsize \text{if (x+2) if a factor of f(x) then,} \hspace{.33em}\\~\\
f(-2)=0 \hspace{.33em}\\~\\
}\end{align}\)

Answer 2

yep :)

Answer 3

MInd blown kaboom.

Answer 4

\(\large \begin{align} \color{black}{

f(x)=x^3-6x^2+kx+10 \hspace{.33em}\\~\\
f(-2)=(-2)^3-6(-2)^2+k(-2)+10=0 \hspace{.33em}\\~\\
}\end{align}\)

Answer 5

Smh. I should have know that. One sec.