Question

The length of a rectangle is 5 inches more than it's width, x. The area of a rectangle can be represented by the equation.x^2+5x=300. What are the measure of the width and length? Width= ________ inches. Length = __________. Inches

Answer 1

the width=15; the length=20

Explanation:

1. to solve the given equation: x²+5x-300=0;

x₁= -20; x₂=15, where 'x' can be only positive value. It means x=15;

2. according to the condtition the length is more, it means 15+5=20.

3. the width is x=15; the length is 20.