Use the drop-down menus to complete each equation so the statement about its solution is true.

clear check
no solutions
7−5+3x−1=
7-5+3x-1=

x +
x +

one solution
7−5+3x−1=
7-5+3x-1=

x +
x +

infinitely many solutions
7−5+3x−1=
7-5+3x-1=

x +
x +

No solutions: 7−5+3x−1= 3x + 7

One solution: 7−5+3x−1= 2x + 4

Infinitely Many Solutions  7−5+3x−1= 3x + 1

Step-by-step explanation:

No solutions means it results in no x and a false statement like 3 = 0.

One solution means it results in x = a number.

Infinite solutions means its results in no x and in a true statement like 3=3.

This will eliminate the x and result in 1 = 7 which is false.

This will result in x= 3

This will eliminate the x and result in 1 = 1 which is true.

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!