👤

Find the area of a rectangular pool if its length measures (4x+11)m and its width measures (7x-1)m. WITH SOLUTION

Sagot :

Answer:

28x²+73x-11 meters

Step-by-step explanation:

Area of Rectangle = Length x Width

A = (4x+11)(7x-1)

USE FOIL METHOD

First terms are 4x and 7x

Outer terms are 4x and -1

Inner terms are 11 and 7x

Last terms are 11 and -1

Then multiply each, take note of their places, the signs and multiplying exponents.

(4x) (7x) = 28x²

(4x) (-1) = -4x

(11) (7x) = 77x

(11) (-1) = -11

Then, perform the following operations

A = (4x+11)(7x-1)

A = 28x²-4x+77x-11

A = 28x²+73x-11 meters

Hope this helps :)