Question

Simplify (x^k + 1)^2(–x^k)^3 (3x).

A. –3x^5k + 2

B. –3x^5k + 3

C. 3x^5k + 2

D. 3x^k + 7

Answer 1

inside first parentheses just k is exponent ?

Answer 2

are you here ?

Answer 3

Yesss

Answer 4

no k+1 is exponent

Answer 5

\[(x ^{k+1}) ^{2} (-x ^{k})^{3} (3x)\]

Answer 6

(x^k + 1)^2(–x^k)^3 (3x).=

=(x^(2k +2)(-x^3k)*(3x) =

= x^2k *x^2 *(-x^3k)*(3x) =

= x^(2k+2) * (-3x^(3k+1) =

= - 3x^(2k+2+3k+1) =

= - 3x^(5k+3)

Answer 7

so B. is right

ok ?

Answer 8

Yessss I understand!!! thanks a lot!