(3x*y-5xy*)by(1/5x* +1/3y*)
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Answer:
= (3x2y – 5xy2) × (1/5x2 + 1/3y2)
=3x2y (1/5x2 + 1/3y2) – 5xy2 (1/5x2 + 1/3y2)
= 3/5x4y + 3/3x2y3 – x3y2 + 5/3xy4
3/5x4y + x2y3 – x3y2 + 5/3xy4
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