Question

If x+y=7and xy=9,find the value of x^2+y^2​

Answer 1

Answer:

here is the value of x^2+y^2

it can be written as (x+y) ^2-2xy

then

put value of x+y and xy

we will get

49-18

it is

31

ok

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Answer 2

Answer:

Step-by-step explanation: