18. simplify ((–3)2)3 a. (–3)6 b. (3)6 c. (3)5 d. (–3)5

A. (-3)6.

Step-by-step explanation:

These are all of the steps to completely find the correct answer to your question, and I also even completely simplified it for you, just in case you needed to know the answer to that too also, as well.

Hope this helps!

Kyle.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!