Q. Show that: 
4 x y + 3 y 2 - 4 x y - 3 y 2 = 48 x

LHS = 4xy + 3y2 - 4xy - 3y2=4xy2 + 3y2 + 2 4xy 3y - 4xy2 + 3y2 - 2 4xy 3y=16x2y2 + 9y2 + 24xy2 - 16x2y2 + 9y2 - 24xy2=48xy2Kindly recheck your RHS

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The question is little wrong there
U asked about (4xy+3y)? - (4xy-3y)? =48x
The question is wrong the question will be (4xy+3y)? - (4xy-3y)? = 48xy?

Hope u got ur answer also!!!

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