Question

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

$(x + y) {}^{2}$
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Answer 1

Answer:

x²+y²=(x+y)(x-y)

(x+y)²=x²+y²+2xy

Answer 2

HERE IS UR ANSWER DEAR,

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

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

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

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