Question

Solve for x. x^2 + 4x + 45 = 0

Answer 1

The correct answer is -5 and -9

Explanation:

To find the answer here, first factor the equation.

x^2 + 4x + 45 = 0

(x + 9)(x + 5) = 0

Now set each parenthesis equal to 0 and solve.

x + 9 = 0

x = -9

x + 5 = 0

x = -5

Answer 2

x2+4x−45=0

Factor x2+4x−45

using the AC method.

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(x−5)(x+9)=0

Set x−5

equal to 0 and solve for x

.

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x=5

Set x+9

equal to 0 and solve for x

.

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x=−9

The solution is the result of x−5=0

and x+9=0

.

x=5,−9