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explain it their
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Answer:
(1) 110.25x² - 10.5xy - 120.75y²
Step-by-step explanation:
= (10.5x - 11.5y) (10.5x + 10.5y)
= 110.25x² + 110.25xy - 120.75xy - 120.75y²
= 110.25x² - 10.5xy - 120.75y²
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