Answer:
5x3−2x2+2x+9
Explanation:
Distribute the Negative Sign:
=5x3+4x2+−1(6x2−2x−9)
=5x3+4x2+−1(6x2)+−1(−2x)+(−1)(−9)
=5x3+4x2+−6x2+2x+9
Combine Like Terms:
=(5x3)+(4x2+−6x2)+(2x)+(9)
=5x3+−2x2+2x+9
The difference of the polynomials (5x3 + 4x2) – (6x2 – 2x – 9) is 5x3 – 2x2 + 2x + 9.
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