Quiz Math
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Verified answer
Jawabg(x) = x² - 7
gof(x) = 4x² + 16x + 9
g {f(x)} = 4x² + 16x + 9
f²(x) - 7 = 4x² + 16x + 9
f² (x) = 4x² + 16x + 16 = (2x + 4)²
f(x)= +_ (2x + 4)
f(10) = 24 --> f(x) = 2x + 4
f⁻¹ (2x +4)= x
2x+ 4 = y
2x= y - 4
x = (y - 4)/ 2
f⁻¹ (x) = (x - 4)/2
f⁻¹ (x) = ¹/₂ x - 2