Question

help please
100 points

Answer 1

Answer:

$(-5x^{2} +2x+5)-(-4x^{3}-x^{2}-6x+7)\\  -5x^{2} +2x+5+4x^{3}+x^{2} +6x-7\\ 4x^{3} -4x^{2} +8x-2$

Step-by-step explanation:

Answer 2

Answer:

4 x 3 + 26 x 2 + 8x−2

Step-by-step explanation:

Distribute the Negative Sign:

=(−5x)2+2x+5+−1(−4x3−x2−6x+7)

=(−5x)2+2x+5+−1(−4x3)+−1(−x2)+−1(−6x)+(−1)(7)

=(−5x)2+2x+5+4x3+x2+6x+−7

=25x2+2x+5+4x3+x2+6x+−7

Combine Like Terms:

=25x2+2x+5+4x3+x2+6x+−7

=(4x3)+(25x2+x2)+(2x+6x)+(5+−7)

=4x3+26x2+8x+−2

Answer:

=4x3+26x2+8x−2