(x + 5) is a factor of x2 + 2x – 15. What is the other factor?​

Question

(x + 5) is a factor of x2 + 2x – 15. What is the other factor?​

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Audrey 3 months 2022-02-19T07:46:31+00:00 1 Answer 0 views 0

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    2022-02-19T07:47:50+00:00

    Answer:

    (x-3)

    Step-by-step explanation: First look what which two numbers would multiply to -15 and add to 2. In this case, it’s 5 and -3 because 5x-3=15 and 5+(-3)=2.

    So the other factor is (x-3)

    To check your work, simply multiply

    (x+5)(x-3) = x2 + 2x – 15

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