Question

Which of the following represents the area of a rectangle whose length is x + 4 and whose width is x − 9? (1 point) x2 − 36 x2 + 5x − 36 x2 − 5x − 36 x2 + 36x − 5

Answer 1

Answer:

The answer is $x^2-5x-36$

Step-by-step explanation:

Since we know that, area of rectangle is the product of its side lengths.

Here length $=x+4$ and width $=x-9$

Thus area $=(x+4)(x-9)$

                 $=x(x-9)+4(x-9)\\=x^2-9x+4x-36\\=x^2-5x-36$