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You need to simplify the following expression.

(2x3+11x2−4x+9)−(5x3+x2+7x−1)

Below is Step 1. Fill in the blanks with the correct sign.

(7 points)
2x3

11x2

4x

9

5x3

x2

7x

1

1 answer

(2x^3 + 11x^2 - 4x + 9) - (5x^3 + x^2 + 7x - 1)
= 2x^3 - 5x^3 + 11x^2 - x^2 - 4x - 7x + 9 + 1
= -3x^3 + 10x^2 - 11x + 10
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