Question

find the zeroes of polynomial x4+x3-34x2-4x+20 if two zeroes are 2 and -2​

Answer 1

Answer:

1.

p(2)=4(2)+3(2)-34(4)-3(2)+20

=8+6-136-6+20

=-108

p(-2)=4(-2)+3(-2)-34(4)-3(-2)+20

=-8-6-136+6+20

=-109