Math, asked by mamtateen9908, 8 months ago

A+b=9 and ab=20 then find that a²+b²

Answers

Answered by sandy1816

3

Step-by-step explanation:

given a+b=9

a²+2ab+b²=81

a²+b²+2.20=81

a²+b²=81-40=41

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