Q.18 ] Find the product of ( 9x - 7xy) (9x - 7xy)
(a) 81x2 + 49.xºy?
(c) 81x2 + 49x+y2 -126xºy
(b) 81x2 – 49x+y?
(d) 81x² + 49x®y2 - 63x²y
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nhi pta bro sorry please sorry
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Answer:
option-D is right option
I hope it's helpful
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