Both of the equations shown have the same solution when solved for x 1/2 (x + 6)= 2x and 5-2x=7x - h what is the value of h? show all work

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

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1.44 centimeters is the correct answer

answer

the correct answer is option c

explanation

we have

we simplify as follows;