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OpenStudy (lovelyanna):
Subtract and simplify: (13x^2 + 2) – (4x^2 + 2x – 7) A. 9x^2 – 2x + 9 B. 9x^2 – 2x – 5 C. 17x^2 + 2x – 5 D. 9x^2 + 2x + 9
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OpenStudy (anonymous):
9x^2 - 2x - 5
OpenStudy (lovelyanna):
Explanation please?
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