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How do you find the sum or difference of (5a2 plus 6a plus 2)-(7a2-7a plus 5)?
Updated: 4/28/2022
Wiki User
∙ 6y agoBest Answer
Combine like terms, adding/subtracting the coefficients:
(5a² + 6a + 2) + (7a² - 7a + 5) = (5+7)a² + (6-7)a + (2+5) = 12a² - a + 7
(5a² + 6a + 2) - (7a² - 7a + 5)
= (5a² + 6a + 2) + (-7a² + 7a - 5) = (5-7)a² + (6+7)a + (2-5) = -2a² + 13a - 3
Wiki User
∙ 6y agoThis answer is:
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Wiki User
∙ 6y agoYou combine like terms. So the answer is -2a2 + 13a - 3.
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