Jennifer T. answered • 06/17/13

Jennifer T. - Math, Science and Reading Tutor!

(2x+4)^{2} = (2x+4)(2x+4)

Use the FOIL method: First, Outer, Inner, Last:

First: 2x•2x = 4x^{2}

Outer: 2x•4 = 8x

Inner: 2x•4 = 8x

Last: 4•4 = 16

Which gives you: 4x^{2}+8x+8x+16

Combine like terms: 4x^{2}+16x+16

Hope this helps!