Question

(a+b)=10 and ab=21 then a^2+b^2 =? find please​

Answer 1

Answer:

40 is your ans .......................

Answer 2

Answer:

Step-by-step explanation:

(a+b)=10                       ab=21

a^2+b^2=(a+b)^2-2ab

             =(10)^2-2*21

             =100-42

              =58

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