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

Sagot :

heatherviolaa485959
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.
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