Question

if ( X+y) = 7 , xy = 12 Find x²+y².​

Answer 1

Answer:

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Answer 2

Answer:

Solution:

$\bf{ (x+y)^{2} = x^{2} + y^{2} + 2xy }$

$\bf{\implies 49 }$

$\bf{ x^{2}+y^{2} = 49-2 \times 12 }$

$\bf{\implies 25 }$

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