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Anna71 [15]
3 years ago
6

Simplify. (-7y^2+4y+9)+(6y^2-5y+9)-(2y^2-9y-2)

Mathematics
1 answer:
Natali5045456 [20]3 years ago
7 0

Combine like terms

-7y² + 6y² - 2y² = -3y²

4y + (-5y) - (-9y) = 4y - 5y + 9y = 8y

9 + 9 - (-2) = 9 + 9 + 2 = 20

-3y² + 8y + 20 is your answer

hope this helps

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