My guess that they want you to factor "in pairs":

. . . . .4x^2 + 3xy + 8x + 6y

. . . . .4x^2 + 8x + 3xy + 6y

. . . . .4x(x + 2) + 3y(x + 2)

. . . . .(x+ 2)(4x+3y)

In your case, though, you'll be able to simplify inside at least one of the sets of parentheses. :wink:

Have fun!