3 years ago

The area of a rectangle is x 2 – 3x – 28. If thelength is x + 4, find the width.

Mathematics

1 answer:

Hatshy [7]3 years ago

7 0

Answer:

-4 square units

Step-by-step explanation:

a = l × b

x2 - 3x - 28 = (x +4)(×)

x2 - 3x - 28 = x2 + 4x

-3x - 28 - 4x = 0

-7x - 28 = 0

-7x = 28

x = -4

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