Question

The area of rectangular kitchen tile is 6x^2-8x-30. The width is 2x-6.

A) what is the length of the kitchen tile?
B) Find the perimeter

Answer 1

L=6x^2-4x+5

P=12x^2-4x-2

Explanation:

A=WL

So, we know the area is 6x^2-8x-30 and the width is 2x-6

Substitute

(6x^2-8x-30)=(2x-6)(L)

L=(6x^2-8x-30)/(2x-6

Divide

L=6x^2-4x+5

P=2L+2W

Substitute

P=2(6x^2-4x+5)+2(2x-6)

P=12×^2-8x+10+4x-12

Simplify

P=12x^2-4x-2