Subtract. Express your answer as a polynomial in standard form. (6x^3-7x^2+9x+4)-(5x^2-9x+9)

1 answer

6x^3 - 7x^2 + 9x + 4 - 5x^2 + 9x - 9

= 6x^3 - 7x^2 + 9x + 4 - 5x^2 + 9x - 9

= 6x^3 - 12x^2 + 18x - 5

Therefore, the answer is 6x^3 - 12x^2 + 18x - 5.
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