Question

if the area of a rectangle is represented by the expression 12x^2-5x-3 and the length is 4x-3, what expression represents the width​

Answer 1

option C

Explanation:

area of rectangle = length * width

12x^2 - 5x - 3 = (4x - 3) * width

12x^2 - 9x + 4x - 3 = (4x - 3)* width

3x(4x - 3) + 1(4x - 3) = (4x - 3)*width

(3x + 1)(4x - 3) / (4x - 3) = width

3x + 1 = width