factories:25(2x+y)²-16(x-y)²
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Answer:
84x² + 9y² + 132xy is the answer
Step-by-step explanation:
25(2x+y)²-16(x-y)²
= 25(4x² + y² +4xy ) -16(x² + y² -2xy)
= 100x² + 25y² + 100xy - (16x² + 16y² - 32xy)
= 100x² + 25y² + 100xy - 16x² - 16y² + 32xy
= 84x² + 9y² + 132xy
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