Question

multiply the polynomial (x-1)(2x squared-x-3)

Answer 1

Did I not just do that ?

Answer 2

again:
http://www.jiskha.com/display.cgi?id=1407198511

Answer 3

x(2x squared-x-3)+ 1(2x squared-x-3)
x.2x squared+x.x+x.3+2x squared-x-3
2x cube+x squared+3x+2x squared-x-3
5x squared-2x squared-3x

Answer 4

Your notation is extremely awkward. We normally write x to a power as
x^power like x^3 is x cubed
Now I will do it your way but you have errors starting with the sign in the first line
x(2x squared-x-3)+ 1(2x squared-x-3)
should be
x(2x squared-x-3) - 1(2x squared-x-3)
then
x*2xsquared -x*x -3x -2xsquared +x+3
or
2 x cubed - 3 x squared -2 x +3