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
(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