Question

The width w of a rectangular swimming pool is 7x^2. The area A of the pool is 7x^3 – 42x^2. What is an expression for the length of the pool?

Answer 1

\[\rm area = length \times width\]So,\[\rm length = \dfrac{area}{width}\]Can you figure everything else out?

Answer 2

no but i will try lol

Answer 3

What is the length?

Answer 4

\[length=f(x)\]

Answer 5

What is the width?

Answer 6

width is 7x^2

Answer 7

so plug that into the equation

\[A=LW=7x^3-42x^2\]

Answer 8

ok

Answer 9

thanks

Answer 10

then divide by W to get

\[\frac{7x^3-42x^2}{W}\]