Question

x cube minus 2 x square minus x + 2 find zeros and verify the relation

Answer 1

x^2- 2x^2- x+2

ANSWER IS

X+1=0

X=-1

PUT VALUE OF X IN X^3-2X^2-X+2

SO WHEN PUTTING VALUE -1; WE CAN FIND THAT it is completely sure that it is zeroes of p(X)