Question

pls solve it pls fast​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

41

Step-by-step explanation:

By putting the values a + b = 9 and ab = 20, in the identity (a + b)² = a² + b² + 2ab

We have 9² = a² + b² + 2 × 20

81 = a² + b² + 40

a²+b² = 81 – 40 = 41