Q 4) Expand the following using appropriate Identities.
a) (3x+4y)2 b) (5x-3y)2
c) (5x+7y)3 d) (9x-2y)3
e) (3x+5y+2z)2 f) (4x-3y+2z)2
g) (6x-5y-2z)2
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Answer:
a)6x+8y b)10x-6y c)15x+21y d)27x-6y e)6x+10y+4z f)8x-6y+4z g)12x-10y-4z
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