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Solve the following quadratic equation by factoring. x^2 - 7x = 18
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5 votes
Solve the following quadratic equation by factoring.
x^2 - 7x = 18

User Sampat Badhe
by
5.9k points

1 Answer

9 votes
Answer: (x-9)(x+2)

Subtract 18 from both sides. x^2-7x-18
Find two factors that will multiple to get -18 and add up to be -7. -9 x 2 is -18 and -9+2=-7.
User Martin Del Vecchio
by
5.7k points
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