<PRE><B>Question 273316</B>
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.


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