Expand and Simplify

(2x + 1) (x - 2) (x + 3)

Answer is = 2x^3+3x^2-11x-6

Step-by-step explanation:

First of all multiply first and second bracket.

=x (2x+1) - 2 (2x+1)

=2x^2+x-4x-2

=2x^2-3x-2

Now multiply 2x^2-3x-2 with (x+3)

=x (2x^2-3x-2) + 3 (2x^2-3x-2)

=2x^3-3x^2-2x+6x^2-9x-6

=2x^3+3x^2-11x-6