Represent the following sentence as an algebraic expression, where "a number" is the letter x. 9 less than the product of 9 and a number.

Step-by-step explanation:

Nine less than - ' - 9'

The product of 9 and a number - '9x' or '(9 * x)'

9 less than the product of 9 and a number would be OR .

Hope this helps.

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!

answer: 8

step-by-step explanation: