Question

evaluate the expression when $x=5$ and $y=4$.
$2(x+y)^2 - 3x$
simplify your answer as much as possible.

Explanation:

Step1: Substitute x=5, y=4

$2(5+4)^2 - 3(5)$

Step2: Calculate sum inside parentheses

$2(9)^2 - 3(5)$

Step3: Compute the squared term

$2(81) - 3(5)$

Step4: Perform multiplication operations

$162 - 15$

Step5: Subtract to get final value

$147$

Answer:

147