Question

Simplify (x2 + xy – y2) + 3 – (2xy + 3x2)

Answer 1

Answer:

Given x

2

(x−3y

2

)−xy(y

2

−2xy)−x(y

3

−5x

2

)

=x

3

−3x

2

y

2

−xy

3

+2x

2

y

2

−xy

3

+5x

3

=6x

3

−2xy

3

−x

2

y

2