Answer:
5x2−3x−3
Step-by-step explanation:
Let's simplify step-by-step.
x2+2x+3−(−4x2+5x+6)
Distribute the Negative Sign:
=x2+2x+3+−1(−4x2+5x+6)
=x2+2x+3+−1(−4x2)+−1(5x)+(−1)(6)
=x2+2x+3+4x2+−5x+−6
Combine Like Terms:
=x2+2x+3+4x2+−5x+−6
=(x2+4x2)+(2x+−5x)+(3+−6)
=5x2+−3x+−3
