Question

If A=x²+xy-6,B=6xy-2x²+1 and C=3x²+7-3xy,find - (1)A-B+C (2)A+B-C​

Answer 1

Answer:

Step-by-step explanation:

A-B+C

=x^2+xy-6-(6xy-2x^2+1)+3x^2+7-3xy

=x^2+xy-6-6xy+2x^2-1+3x^2+7-3xy

=6x^2-8xy+0

=6x^2-8xy