Question

Pls tell seconds answer fast

Answer 1

Answer:

1x-2x+4x-9

is the answer

Answer 2

Answer:

(x 3 +5x 2 −4x+6)−(2x 3 −x 2 +4x−6)

=x 3 +5x 2 −4x+6−2x 3 +x 2 −4x+6

=(1−2)x 3 +(5+1)x 2 +(−4−4)x+(6+6)

=−1x 3 +6x2 −8x+12

=−x 3 +6x 2−8x+12