You can put this solution on YOUR website! Perform the indicated operations:
(5x^2-3x+2)+(-3x^2+9x-8)-(x^2+3x-10)
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Combine "like" terms:
(5x^2-3x^2-x^2) + (-3x+9x -3x) + (2 -8 + 10)
= x^2 + 3x +4
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Cheers,
Stan H.