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If a+b =8 and ab=15 find the value of (a²+b²) |
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Answer» Answer: (a + b)² = (8)² a² + b² + 2ab = 64 a² + b² + 2(15) = 64 a² + b² + 30 = 64 a² - b² = 64 - 30 a² - b² = 34 |
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