Find (3a2 - 2a + 4) - (a2 - 3a + 7) . A. 2a^2 + a - 3 B. 2a^2 - 5a + 11 C. 4a^2 - 5a + 11 D. 4a^2 + a - 3
(1) Answers
(3a^2 - 2a + 4) - (a^2 - 3a + 7) = (distribute the negative sign) 3a^2 - 2a +4 - a^2 + 3a - 7 = (add like terms) 2a^2 + a - 3 So, the answer is A!
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