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Mathematics 57 Online
OpenStudy (anonymous):

Simplify: (7x2 - 6x - 2) - (4x2 - 2x - 7) A. 11x2 - 4x + 5 B. 3x2 - 4x + 5 C. 3x2 - 8x + 5 D. 11x2 - 4x + 9

OpenStudy (anonymous):

7x2-6x-2 -4x2-2x+7 3x2-8x+5

OpenStudy (anonymous):

You get 7x^2 - 6x - 2 - 4x^2 + 2x + 7 = 3x^2 - 4x + 5 (by combining like terms) Choice (B) is correct.

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