Question

what should be added tox2+xy+y2 to obtain 2x2+3xy​

Answer 1

Step-by-step explanation:

$let \: p\: be \: added\: to \: {x}^{2} + xy + {y}^{2} to \:get \:{2x}^{2} + 3xy \\ {x}^{2} + xy + {y}^{2} + p = {2x}^{2} + 3xy \\ p = {2x}^{2} + 3xy - {x}^{2} - xy - {y}^{2} \\ p = {x}^{2} + 2xy - {y}^{2}$

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