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g (x) = x² - 7
h (x) =
(f o g) (x) = f (g (x))
= f (x² - 7)
= 5 (x² - 7) + 3
= 5x² - 35 + 3
= 5x² - 32
a) (h o f o g ) (x) = h (f o g(x))
= h (5x² - 32)
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b) h (x) =
y =
2xy - y = x + 2
2xy - x = y + 2
x (2y - 1) = y + 2
x =
c) (g o (x) = g (
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d )(g o g o = g
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