Answer
$H$
Work Step by Step
The given choices are:
F : $(4x+1)(2x+6)=8x^2+24x+2x+6=8x^2+26x+6$
G : $(4x+3)(2x+2)=8x^2+8x+6x+6=8x^2+12x+6$
H : $(4x+6)(2x+1)=8x^2+4x+12x+6=8x^2+16x+6$
I : $(8x+1)(x+6)=8x^2+48x+x+6=8x^2+49x+6$
Hence, the correct answer is $H$.