Question

the width W of a rectanglar swimming pool is x+4 the area A is 2x^3-29x+12. What is an expression for the length of the pool?

Answer 1

Well area...= Length times Width

So

2x^3 - 29x + 12 = Length * x + 4

so solve for Length...divide both sides by (x + 4)

2x^3 - 29x + 12 = Length * x + 4
------------------------------
x + 4 x + 4

\[Length = \frac{ 2x^3 - 29x + 12 }{ x + 4 }\]

Can you solve this...?