Answer:
f(x) = x² - 4x + 4, g(x) = -4x
f(g(x)) = f(-4x) = (-4x)² - 4(-4x) + 4
= 16x² + 16x + 4
f(g(2)) = 16(2²) + 16(2) + 4
= 64 + 32 + 4
= 100
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