Question

check x-2is a factor of x cube -3xsquare+2x-1

Answer 1

Since x-2 is a factor =>x=2

Putting this value in the equation;

2cube -3 *2square+2*2- 1

=> p(2)= 8-3×4+4-1 = 8-12+3

= 11-12=-1

Since it doesn't equals 0

=>x-2 is not a factor