( 2x/3y − 3x/4y )^2
pls tell me the answer
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Answer:
4x²/9y² + 9x²/16y² - x²/y²
Step-by-step explanation:
(2x/3y − 3x/4y )²
= (a - b)² = a² + b² -2ab
= (2x/3y)² + (3x/4y)² - 2(2x/3y)(3x/4y)
= 4x²/9y² + 9x²/16y² - 12x²/12y²
= 4x²/9y² + 9x²/16y² - x²/y²
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