Question

if a+b=4 a3+b3= 28 find a2+b2​

Answer 1

Answer:

Answer is

a=1

b=1

a+b=4

1+1(3is multiply)=4

a2+b2=10

1+3(3is multiply)

1+9=10

a3+b3=28

1+9(3is multiply)

1+27

1+27=28

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