SOLUTION: What are factors of -12 that when added together equal to -1

Question 799080: What are factors of -12 that when added together equal to -1
Found 2 solutions by stanbon, Finavon:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
What are factors of -12 that when added together equal to -1
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Answer: -4 and 3
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Cheers,
Stan H.
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Answer by Finavon(81) (Show Source): You can put this solution on YOUR website!
factors (integers) a and b
a+b=-1 (1)
a*b=-12 (2)
rearrange (1) a=-(1+b)
subst for a in (2):
-(1+b)*b=-12

rearrange
solves for

Factors are 3 and -4
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