Question

Which of the following represents the area of a rectangle whose length is x - 7 and whose width is x + 12?

Answer 1

Answer :

Length of rectangle = x - 7

Width of rectangle = x + 12

We have to find area of rectangle$.$

_________________________________

$:\implies\sf\:Area=Length\times Width$

$:\implies\sf\:Area=(x-7)(x+12)$

$:\implies\sf\:Area=x^2+12x-7x-84$

$:\implies\bf\:Area=x^2+5x-84$