The area of a rectangle is y^2-4y-45 square inches. Which expression represents a possible length for the rectangle? A y+5 B y+9 C y-5 D y-45

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asked Jul 5, 2018 58.9k views

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Vladimir Amiorkov · Answer 1 · 2018-07-10T11:44:16+0000

1. Ask: Which two numbers add up to -4 and multiply to -45?
-9 and 5

2. Rewrite expression using the above
(y-9)(y+5)

3. Your answer:
Your answer will be a. Have a nice day :D

The area of a rectangle is y^2-4y-45 square inches. Which expression represents a possible length for the rectangle? A y+5 B y+9 C y-5 D y-45

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