Question

Diketahui f(2x-2) = 4x-3. tentukan :
a. f(x)
b. f(3)
c. f(5a-2)

Answer 1

Misal
f(2x-2)=a
2x-2=a
2x=a+2
x=(a+2)/2
f(a) =4. (a+2)/2-3
f(a) =2a+4-3
=2a+1

f(x)=2x+1
f(3)=2.3+1=7
f(5a-2)=2(5a-2)+1
=10a-4+1
=10a-3