Verified Answer :

iGreen

(y + 7)^2 = (y + 7)(y + 7)

Multiply all the terms in the first parenthesis to all the terms in the 2nd parenthesis:

y y = y^2
y 7 = 7y
7 y = 7y
7 7 = 49

So we have:

y^2 + 7y + 7y + 49

Combine like terms:

y^2 + 14y + 49

the answer is y^2 + 14y + 49 hope this helps

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