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If f(x)=8x and g(x)=2x+1 find (fog)(x)

16x^2+8x

16x+1

16x+8

10x+1

1 answer

(f◦g)(x) = f(g(x))
Since f(x) = 8x,
f(g) = 8g = 8(2x+1) = 16x+8
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