38. given: ∠1 angle 1 and ∠2 angle 2 are complementary. ∠3 angle 3 and ∠4 angle 4 are complementary. ∠2≅∠4angle 2 approximately equal to , angle 4 prove: ∠1≅∠3

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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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plz mark brainliest

4

step-by-step explanation:

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