Question: Simplify by adding. Express your answer as a single polynomial in standard form. (7-10x + 2x2) + (-4+5x-9x2) (7-10x+ 2x2) + (-4+5x-9x2) = (Type your

Simplify by adding. Express your answer as a single polynomial in standard form. (7-10x + 2x2) + (-4+5x-9x2) (7-10x+ 2x2) + (-4+5x-9x2) = (Type your answer in standard form.)
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