kiarisantana0404 kiarisantana0404

03-06-2020
Mathematics

contestada

Which expression is a factor of x2 +2x - 15 A. (x - 3) B. (x + 3) C. (x + 15) D. (x - 5)

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wegnerkolmp2741o wegnerkolmp2741o

03-06-2020

Answer:

A. (x - 3)

Step-by-step explanation:

x^2 +2x - 15

Factor

What 2 numbers multiply to -15 and add to 2

5*-3 = -15

5 -3 =2

(x+5)(x-3)

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