The width w of a rectangular swimming pool is 7x2. the area a of the pool is 7x3 – 42x2. what is an expression for the length of the pool? show your work.

Length (L) = x - 6 .

Step-by-step explanation:

Given : The width w of a rectangular swimming pool is 7x². The area A of the pool is 7x³ – 42x².

To find : What is an expression for the length of the pool? Show your work.

Solution : We have given

Width = 7x².

Area of rectangle = 7x³ – 42x².

Let the length = L

Area of rectangle = length  * width .

Plugging the values.

7x³ – 42x²= L * 7x².

On dividing both sides by 7x².

.

.

x - 6 = Length.

Therefore, Length (L) = x - 6 .

£56

step-by-step explanation:

the anwser is d) 75°

step-by-step explanation: