Question

Which of the following expressions is equivalent to a9 - b9?

Answer 1

you mean \(\Large\color{black}{ a^9-b^9}\) ?

Answer 2

Which of the following expressions??

The following expression here is of Solomon and not yours. :P

Answer 3

@nick305 are you given with some answer options or choices?

Answer 4

I am NOT going to expand it. But you can certainly put it in wolframalpha.com

Answer 5

yeah solomon

Answer 6

yeah let me give you the answer choices @waterineyes

Answer 7

A. (a3)3 - (b3)3
B. (a6)3 - (b6)3
C. (a3 - b3)2
D. (a3- b3)3

Answer 8

Rule of indices:
\[(a^m)^n = a^{m \times n}\]

Answer 9

so i can eliminate c and d @waterineyes

Answer 10

Yes for sure.

Answer 11

What else you can eliminate?

Answer 12

Can you write \(9\) as \(3 \times 3\) ??

Answer 13

b

Answer 14

Good.. :)

Answer 15

thank you @waterineyes

Answer 16

See, \(a^9\) in other form can be written as:
\[a^9 = a^{3 \times 3} = (a^3)^3\]

Just using that indices rule. :)

Answer 17

\(m=3\) and \(n = 3\) also there.

you are welcome dear. :)

Answer 18

lol you the best

Answer 19

"Best", that I can't say, but yes I am lol.. :P

Answer 20

For your next post, any, do tag me there, one thing is remained, that I can't do here. :P

Answer 21

ok thanks