SOLUTION: directions: find the roots of the quadratic equation y=x^2+7x-18 by factoring. choose the correct answer. A)7,9 B)9,2 C)-7,-9 D)-9,2. which one is the answer?

SOLUTION: directions: find the roots of the quadratic equation y=x^2+7x-18 by factoring. choose the correct answer. A)7,9 B)9,2 C)-7,-9 D)-9,2. which one is the answer?

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Question 123885: directions: find the roots of the quadratic equation y=x^2+7x-18 by factoring. choose the correct answer. A)7,9 B)9,2 C)-7,-9 D)-9,2. which one is the answer?
Answer by chitra(359) (Show Source): You can put this solution on YOUR website!
The given quadratic equation can be written as:

y =

Y =

y = x(x + 9) - 2(x + 9)

y = (x - 2)(x + 9)

Thus the soln set is (-9,2)

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