please answer this question no. 27
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I DON'T KNOW
BECAUSE THE QUESTION IS NOT CLEAR
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Answer:
a). a = b
Step-by-step explanation:
2(a² + b²) = (a + b)²
2a² + 2b² = a² + 2ab + b²
2a² + 2b² - a² - 2ab - b² = 0
a² - 2ab + b² = 0
(a - b)² = 0 → a - b = 0 → a = b
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