Question

2x^7 - 6x + 3 - (9x^8 + 4x)

A. -7x^15 + -5x + 3
B. -9x^8 + 2x^7 - 2x + 3
C. -9x^8 + 2x^7 - 10x + 3
D. -7x^8 + 5x^7 - 11x + 3

Answer 1

2x7+(−6x−4x)+3−9x8


Simplify
2x^7−10x+3−9x^8

Answer 2

(the first step is gather like terms, sorry didn't type that)

Answer 3

wouldnt it be B.?

Answer 4

I got C

Answer 5

how do you get the 10x.?

Answer 6

by adding 6 and 4.?

Answer 7

the negative 6x and the negative 4x go together and make a positive 10 (2 negatives make a positive)

Answer 8

oh okay thanks