Question

if a + b is equal to 7 and a b is equal to 10 then the value of a square + b square is

Answer 1

a+b=7
ab=10
(a+b)^2=a^2+b^2+2ab
7^2=a^2+b^2+2(10)
49=a^2+b^2+20
a^2+b^2=29


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Answer 2

Hey mate thank for thr question
Hope it helps
a+b=7. , ab=10
a2+b2=(a+b)^2-2ab
a^2+b^2=(7)^2-2*10
=49-20
=29