r9ubyjanvics r9ubyjanvics

21-10-2016
SAT

contestada

If a + b = y, what is a^2 + 2ab + b^2?
A.
Y
B.
2y
C.
Y^2
D.
2y^2
E.
4y^2

Respuesta :

02-11-2016

(a+b)^2= a^2+2ab+b^2
(a+b)=y
(a+b)^2=y^2

answer is C

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