use the substitution method to solve the system of equations. choose the correct ordered pair. 2x+y=8 y=-x+5

a.(2,3)

b.(4,1)

c.(5,0)

d.(3,2)

the answer i think is a)

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

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