Question

what should be added to x2-y2+2xyto obtained x2+y2+5xy?​

Answer 1

Answer:

Answer is at attachment...

Answer 2

$\huge{ \boxed{ \fcolorbox{cyan}{pink}{Answer}}}$

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• We should always keep in mind that while adding quantities, unit or variable should be same.

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$\bold \orange{ : \longmapsto \: {x}^{2} - {y}^{2} + 2xy + (z) = {x}^{2} + {y}^{2} + 5xy}$

$\bold \purple{ : \longmapsto \: (z) = {x}^{2} + {y}^{2} + 5xy - {x}^{2} + {y}^{2} - 2xy }$

$\bold \orange{ : \longmapsto \: (z) = 2 {y}^{2} + 3xy }$

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$\boxed{ \fcolorbox{cyan}{black}{ \boxed{\bold \pink{ \boxed{ \fcolorbox{cyan}{orange}{ \boxed{\bold \purple{ Answer : 2y^2 + 3xy }}}}}}}}$