SOLUTION: x2-13-12x

Question 676532: x2-13-12x
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
x^2-13-12x

x^2-12x-13

x^2+x-13x-13 ... Note: 1 and -13 add to -12 and multiply to -13.

(x^2+x)+(-13x-13)

x(x+1)+(-13x-13)

x(x+1)-13(x+1)

(x-13)(x+1)

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Answer:

x^2-13-12x

completely factors to

(x-13)(x+1)
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