Question

if a+b = 3and ab=2 then a square + b square =​

Answer 1

Answer:

it's answer is 5

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

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

given a+b=3 and ab=2 then,

(3)^2=a^2+b^2+2(2)

9=a^2+b^2+4

a^2+b^2=9-4

a^2+b^2=5