Answers

2016-06-26T16:37:48+08:00
(9x+3y)(9x+3y)
81x(squered)+21xy
21xy+9y(squered) -subract

=81x(squered)+9y(squered)
1 2 1
2016-06-26T17:07:54+08:00
81x2+54xy+9y2
that is the answer
eightyone x squared +
fiftyfour xy+
nine y squared
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