Question 1153309
(f o g)(x) = 2(5x-9)^2 +1 = 2(25x^2 -90x +81) +1 = 50x^2 -180x +162 +1 =
50x^2 -180x +163
:
(a)  f(g(2) = 50 * 2^2 -180 * 2 +163 = 3
:
(d)  (g o g)(x) = 5(5x-9) -9 = 25x -45 -9 = 25x -54
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