### Home > A2C > Chapter 9 > Lesson 9.3.2 > Problem 9-149

9-149.

Given the equation .

Verify that

is a solution.Substitute

into the equation for every .What is one factor of

?Use the value for

*x*given in problem a to calculate the factor.Use (b) to find another factor.

Try using a generic rectangle.

What are all the solutions of

?See part (a) for one solution.

Use the quadratic formula to find the other solutions in the equation

*x*^{2}− 4*x*− 1.