If (a+b)=9 and ab=6 then find the value a²+b²

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Leke · Answer 1 · 2024-07-13T08:20:27+0000

Answer: 69

Step-by-step explanation: a + b = 9 and ab = 6

a² + b² = ?

Soo... Lets use the formula (a + b)²

(a + b)² = a² + b² + 2ab

9² = a² + b² + 2(6)

81 = a² + b² + 12

81 - 12 = a² + b²

69 = a² + b²