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Answer» (5x/2 - 4y/3) (5x/2 - 4y/3) Use (a - b)(a-b) = (a-b)² = a² + b² - 2ab So,(5x/2 - 4y/3) (5x/2 - 4y/3) = (5x/2 - 4y/3)² = (5x/2)² + (4y/3)² - 2 × 5x/2 × (4y/3) = 25x²/4 + 16y²/9 - 20xy/3 |
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