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Factoring Help Please...?
How do I factor this...
r^2-6r-7 ?
What about this one?
6w^2+17w-45
2 Answers
- 1 decade agoFavorite Answer
it would be (r-7)(r+1)
you take two factors of the constant, which is the last number that has no variables, in this case -7. The only two factor are 7 and 1. These two numbers have to add up to the middle number which is -6. Make sure you look at the sign. Because the six is negative, you know the seven has to be negative. So -7+1=-6
YOu can also use the quadratic formula.
