SOLUTION: Factor completely. If a polynomial cannot be factored, write prime. r^2-r-30

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Question 398994: Factor completely. If a polynomial cannot be factored, write prime.
r^2-r-30
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Factoring completely

  r^2-r-30

 (r-6)(r+5)

Note:SUM of the inner product(-6r) and the outer product(5r) = -r