Answer:
9x^3 + 4x^2 + 5
Step-by-step explanation:
Let's simplify step-by-step.
6x^2−3−5x^3−(4x^3+2x^2−8)
Distribute the Negative Sign:
=6x^2−3−5x^3+−1(4x^3+2x^2−8)
=6x^2+−3+−5x^3+−1(4x^3)+−1(2x^2)+(−1)(−8)
=6x^2+−3+−5x^3+−4x^3+−2x^2+8
Combine Like Terms:
=6x^2+−3+−5x^3+−4x^3+−2x^2+8
=(−5x^3+−4x^3)+(6x^2+−2x^2)+(−3+8)
=−9x^3+4x^2+5