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(6x2-6x+4)-(x2-5x-9)
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(6x2-6x+4)-(x2-5x-9)

User Matt Le Fleur
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First, we need to simplify the equation and carry the subtraction sign through the parenthesis:
6x^2 - 6x + 4 - x^2 + 5x + 9
Now we need to combine like terms to find your answer:
4x^2 - x + 13
User Mxmissile
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