Question

Verify that 2, 3 and -1 are the zeroes of the cubic polynomial x

3 - 4x2 + x + 6 and

check the relationship between zeroes and coefficients.​

Answer 1

p(x)= -4x2+x+9

when p(x)=2

p(2)= -4×4+2+9

p(2)= -16+11

p(2)= -5

so we conclude that it is not a zreo of cubic polynomial