Question

what should be added to x 2 + y 2 xy to obtain 2 x2 + 3xy ?​

Answer 1

Step-by-step explanation:

x^2 + 2xy - y^2. So x^2 + 2xy - y^2 must be added

Answer 2

Answer:

x^2+ (3-y^2)xy. this comes from subtracting first term from second.