Question

What are the discontinuities of x−2x−2(x+2)?

Answer 1

Soln:

x-2x-2(x+2)

=x(x+2)-2x(x+2)-2(x+2)

=x²+2x-2x²-4x-2x-4

=-x²+2x-6x-4

=-x²-4x-4