) Expand the following
1) (2P-3)^2
2) (7m +5)^2
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Answer:
(a-b) ^2= a^2+b^2-2ab
4p^2+9-2(2p)(3)
4p^2+9-12p
(a+b) ^2= a^2+b^2+2ab
49m^2+25+2(7m) (5)
49m^2+25+70m
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