SOLUTION: Hi. I need help solving a math problem. x^2+2x-63=0 Thank you.

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Question 273316: Hi. I need help solving a math problem. x^2+2x-63=0 Thank you.
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 + 2x - 63 factors out to be (x-7) * (x+9)

(x-7) * (x+9) = x*(x+9) - 7*(x+9) which becomes x^2 + 9x - 7x - 63.

combine like terms to get:

x^2 + 2x - 63 which is your original equation.

the factors are:

(x-7) * (x+9) = 0

your answers are:

x = 7
x = -9

plug them into your original equation of x^2 + 2x - 63 and you will see that the equations are true, confirming the answers are good.