(il ( 4x + 3y)² - (2x - 3y)²- 48xy
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Answer:
4x+3y)^2 - (4x-3y)^2 -48xy
= 16x²+9y²+24xy-(16x²+9y²-24xy) -48xy
= 16x²+9y²+24xy-16x²-9y²+24xy-48xy
= 0
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