Write a simplified polynomial expression in standard form to represent the area of the rectangle below.A picture of a rectangle is shown with one side labeled as 5 x plus 2 and another side labeled as x minus 4. A. 5x2 + 18x − 2B. 5x2 + 13x + 2C. 5x2 − 18x − 8D. 5x2 + 13x + 8
Accepted Solution
A:
(5x+2)(x-4 5x (x)+2(x)+5x (-4)+2 (-4) 5x^2+2x-20x-8 5x^2-18x-8 C. 5x^2-18x-8