Question

A rectangular garden has length and width as given by the expressions below.

Length: 4 - 7(3x + 4y)
Width: 3x(-2y)
Write a simplified expression for the perimeter of the rectangle.

Answer 1

-24xy+ 162x²y +168xy²

Explanation:

[4-7(3x+4y)] • 3x(-2y) =

(4-21x-28y) • (-6xy)=

4•(-6xy) -21x•(-6xy)-28y•(-6xy)=

-24xy+ 162x²y +168xy²