PRE-CAL/CAL MASTER NEEDED

f ( 2x − 1 ) = 4x^2 − 10x + 6

from f(x)=x^2-3x+2, h(x)=2x-1, f(h(x))

How is this: f ( 2x − 1 ) = 4x^2 − 10x + 6 derived from ^