If a+b =10 and ab= 32, then what is a² + b²?

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a+b =10, ab= 32 ആയാൽ a² + b² എത്രയാണ്?

A64

B36

C81

Answer:

a+b =10, ab= 32 (a + b)² = a² + b² + 2ab ⇒ a² + b² = (a + b)² - 2ab = 10² - 2 × 32 = 100 - 64 = 36

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