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3 years ago

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

Mathematics

1 answer:

Ilya [14]3 years ago

7 0

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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2 years ago

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3 years ago

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3 years ago

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

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