Question

Show that -1 is a zero of the polynomial 2x^3-x^2+x+4

Answer faasstttt pleaseeeee

Answer 1

Answer:

LET X = -1

2X³+X²+X+4=0

=> 2(-1)+(-1)²-1+4=2

Answer 2

Answer:

0

Step-by-step explanation:

P(x)=2x^3-x^2+x+4

P(-1)=2*(-1)^3-(-1)^2+(-1)+4

-2-1-1+4

-2-2+4

-4+4=0

Hence minus 1 is the zero of the polynomial 2x^3-x^2+x+4