52²-7ab + 56² from 3 ab-2a²-26²
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sould we divide or subtract????????
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Answer:
-2a² + 3ab + 7ab - 6516
Step-by-step explanation:
52² - 7ab + 56² from 3 ab - 2a² - 26²
= 3 ab - 2a² - 26² - (52² - 7ab + 56²)
= 3 ab - 2a² - 26² - 52² + 7ab - 56²
= -2a² + 3ab + 7ab - 26² - 52² - 56²
= -2a² + 3ab + 7ab - 676 - 2704 - 3136
= -2a² + 3ab + 7ab - 6516
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