SOLUTION: The instructions say to solve by factoring. x²+13x=-42. There are supposed to be two answers. I know how to factor when the equation equals 0, but not when there is an answer other

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The instructions say to solve by factoring. x²+13x=-42. There are supposed to be two answers. I know how to factor when the equation equals 0, but not when there is an answer other      Log On


   

Question 855924: The instructions say to solve by factoring. x²+13x=-42. There are supposed to be two answers. I know how to factor when the equation equals 0, but not when there is an answer other than 0.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Make IT equal zero

x^2 + 13x + 42 = 0

(x+6)(x+7) = 0

(x+6)= 0,  x = -6

(x+7) = 0,  x = -7