7×8=(5×7, times, 8, equals, start color #aa87ff, left parenthesis, 5, times, end color #aa87ff \purpleC){}+\greenD{(2 \times 8)})+(2×8)start color #aa87ff, right parenthesis, end color #aa87ff, plus, start color #1fab54, left parenthesis, 2, times, 8, right parenthesis, end color #1fab54
\phantom{7\times 8 }={} \purpleC{40} + {}

00

step-by-step explanation:

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!

its adding 5.5 each time

step-by-step explanation:

i recommend you do what your heart desires. if you're attracted to the same gender, then you're attracted to the same gender. you can't determine what your heart wants.