A: 2(2u + 7)2
B: (2u + 4)2
C: (2u + 7)2
D: (4u – 7)2
4u^2 - 28u + 49
(2u - 7) (2u - 7)
2u times - 7 = - 14u, and - 7 times 2u = -14u
the middle term is made by adding - 14u to - 14u
the end term is made by multiplying - 7 by - 7
thus: (2u - 7) squared
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