Question

What must be added in x²+xy+y²+1 to get x³+3

Answer 1

Step-by-step explanation:

Let the number added be a

=》x²+xy+y²+1+a=x³+3

=》a = x³+3-(x²+xy+y²+1)

=》a =x³+3-x³-xy-y²-1

=》a = x³-x²-xy-y²+3-1

=》a=x³-x²-xy-y²+2