Chapter 9 - Quadratic Functions and Equations - 9-4 Factoring to Solve Quadratic Equations - Practice and Problem-Solving Exercises - Page 571: 12

x=−2/7 or x=4/5

If a product is 0, one of the factors must be 0. Use the addition property of equality and the multiplication property of equality to solve for x. 7x+2=0 or 5x−4=0 7x+2−2=0−2 or 5x−4+4=0+4 7x=−2 or 5x=4 7x÷7=−2/7 or 5x÷5=4÷5 x=−2/7 or x=4/5