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Question

Expand using identities:
(3x5y)2

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Solution

(3x5y)2=(3x5y)(3x5y)
=(3x)22.3x.5y+(5y)2
=9x230xy+25y2
(3x5y)2=9x230xy+25y2

1107375_1134411_ans_68c1a1d146ef4fd19a9f0d3092e68f3c.jpg

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