
Shailaja P. answered 11/09/16
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(-2a^2)^2 +(3b)^2 +2 (-2a^2)(3b)-4a^4
=4a^4 + 9b^2 - 12a^2 *b -4a^4
= 3b (3b -4a^2)
Kiranpreet K.
asked 11/09/16Shailaja P. answered 11/09/16
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