### Home > CCA > Chapter Ch9 > Lesson 9.1.3 > Problem 9-27

9-27.

Solve the following quadratic equations by factoring and using the Zero Product Property. Then check your solutions.

Use a generic rectangle and a diamond problem to help you factor the equation.

left edge top

interior top left

interior top right

left edge bottom

interior bottom left

interior bottom right

bottom edge left

bottom edge right

See part (a).

Rewrite the equation so that it is equal to

.

You should notice that this is a difference of squares.