Question

If x+y=5 if xy=2 then x²+y²=?

Answer 1

Step-by-step explanation:

it is solved................

Answer 2

Hi buddy

Here is your answer

$x + y = 5$

$squaring \: on \: both \: sides$

$( {x}^{2} + {y}^{2} ) = {5}^{2}$

${x}^{2} + {y}^{2} + 2xy = 25$

${x}^{2} + {y}^{2} + 2 \times 2 = 25$

${x}^{2} + {y}^{2} = 25 - 4$

${x}^{2} + {y}^{2} = 21$

Hope its help

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#sibi ❤️