Simplify the following expression 7-5/6x7-7/6

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Step-by-step explanation:

It is essential that you use parentheses to eliminate ambiguity here.

I will make the assumption that you meant  7-(5/6)*7-7/6.  This simplifies to

7 - 35/6 - 7/6, or

42     35      7

- - = 0

 6      6        6

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: none of these answers are correct only the second half is

step-by-step explanation: