Question

Which expression is equivalent to the given expression?-2=7 +81 - 9 + 41 + 7=2 + 2

Answer 1

$-2x^2+8x-9+4x+7x^2+2$

To simliy combine like terms

Like terms are terms whose variables and their exponents are the same.

$\begin{gathered} =-2x^2+7x^2+8x+4x-9+2 \\ =5x^2+12x-7 \end{gathered}$Answer: A