7. 16 (x + y)2 - 25 (x – 3y)2
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hey mate here is your answer. plz mark as brainlist
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16(x+y)2-25(x-3y)2
16(2x+2y)-25(2x-6y)
32x+32y-50x+150y
-18x+182y
2(-9x+61y)
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