Question

1. write and simplify an expression that can be used to find the perimeter of the rectangle? l = 8x - 3 w = 6x + 9 perimeter: _

Explanation:

Step1: Recall perimeter formula

$P = 2L+2W$

Step2: Substitute L and W

$P = 2(8x - 3)+2(6x + 9)$

Step3: Distribute

$P=16x-6 + 12x+18$

Step4: Combine like - terms

$P=(16x + 12x)+(-6 + 18)$
$P = 28x+12$

Answer:

$28x + 12$