Math Help PLEASE!! Simplify: (3r² + 7r + 1) + (4r² - 8r - 2) A. 7r² + 15r - 1 B. 7r² - r - 1 C. 7r² - 15r - 3 D. -r² - r - 1

asked Jan 14, 2018 48.3k views

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Math Help PLEASE!!

Simplify: (3r² + 7r + 1) + (4r² - 8r - 2)

A. 7r² + 15r - 1
B. 7r² - r - 1
C. 7r² - 15r - 3
D. -r² - r - 1

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3 votes

combining like terms............
3r^2 + 7r + 1 + 4r^2 - 8r - 2
7r^2 - r - 1

Davidbitton answered Jan 19, 2018

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