Factoring reverses multiplication — breaking a polynomial back down into the simpler expressions that were multiplied together to create it, which is essential for solving equations.
1-A 2-A 3-A 4-A | 5 5x 6 (x+5)(x−5) 7 = 5x(x+3) 8 = (x+4)(x+5) 9 = (x+5)(x−5) | 10 = (x−3)(x−4)