Desmos Graphing Calculator

CalcReferenceCopy

Math·Advanced Math·Equivalent expressions

medium

Function $f$ is defined as $f(x)=(2x-5{)}^2$, and function $g$ is defined as $g(x)=2(2x+7)$. Which of the following is equivalent to $f(x)+g(x)$?

A

$4x^2-16x+11$

B

$4x^2-16x+39$

C

$4x^2-6x+39$

D

$4x^2+24x+11$