Question

what must be added to 2x2-3xy+5y2 to get x2-xy-y2​

Answer 1

Step-by-step explanation:

Let p should be add to 2x ^2-3xy+5y^to get x^2xy-y ^2

( 2x^2-3xy+5y^2 ) +p=x^2-xy-y^2

Therefore

p=x^2-xy-y ^2-(2x^2-3xy+5y^2 )

=x^2-xy-y^2-2x^2+3xy-5y^2

= x^2+2xy-6y^2