Answer: its either 21x^2 +2x or 11x^2-6x Im not sure which one is solved correctly :/
Explanation:
8x^2+4x-6x^2+2+7x^2-2x
21x^2 +2x
or
(8x^2+4x-6x2)2+7x^2-2x
-12x^2+8x+16x^2+7x^2-2x
11x^2-6x
Answer:
11x2+6x
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