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f(x) = 4x+2
(f(-3))^2 = (4(-3)+2)^2 = (-12+2)^2 = (-10)^2 = 100
f(2) = 4(2)+2 = 10
(f(-3))^2 - f(2) = 100 -10
= 90
Jadi, jawabannya adalah E. 90