diketahui f(4x-1) = 8x + 4 nilai f (3) adalah

f(4x-1) = 8x + 4
Tentukan nilai f(x)
Misalkan 4x-1 = a maka x = (a+1)/4
f(a) = 8(a+1/4) + 4
f(x) = 2x+2+4 = 2x + 6
f(3) = 2.3 + 6 = 6+ 6 = 12

f(4x-1) = 8x+4
4x-1 = 3
4x = 3+1
X = 1
f (3) = 8(1)+4
= 12

Semoga membantu :v