Question

what should be added to x^2+xy+y^2 to obtain 2x^2+3xy​

Answer 1

Answer:

Step-by-step explanation:

$2x^2+3xy-( x^2+xy+y^2)\\= 2x^2+3xy- x^2-xy-y^2\\= x^{2} +2xy-y^{2}$