Simplify 2 (x - 4) 7 (x 2).

First go ahead and distribute the 2

(2x-8)

Now distribute the 7.

I think you may have forgotten to add the sign into the (x 2)

If it's adding you'd get (7x+14)

If it's subtracting you'd get (7x-14)

Same thing for between the two expressions.

Hope you understand