Question

A rectangular plot of land has length 5x − 1 and width 3x + 7. What is the area of the land?

Answer 1

15x^2+32x-7

Explanation:

Area of rectangle=l×b

=(5x-1)(3x+7)

=15x^2+35x-3x-7

=15x^2+32x-7

Answer 2

15x^2 +32x -7

Explanation:

(5x-1 )(3x+7)=

15x^2 - 3x +35x -7=

15x^2 +32x -7