Please help algebra 1 PLEASE IM BEGGING CLICK ON THIS AND HELP

B) 12 p^10 q^17 r^2

Step-by-step explanation:

When we multiple two same numbers with different powers we add the power

p^5 . p^5 = p^10

q^9 . q^8 = q^17

And 6.2= 12

And r^2 remain the same

==> 12 p^10 q^17 r^2

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

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!