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08-03-2019
Mathematics

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Factor x^2 + 2x - 15.

A) (x - 5)(x + 3)

B) (x - 5)(x - 3)

C) (x + 5)(x + 3)

D) (x + 5)(x - 3)

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blakeedwards2019 blakeedwards2019

08-03-2019

The answer is D) (x + 5)(x - 3).

The sum of +5 and -3 is the slope, +2, and they multiply together to get the y-intercept (b), -15

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