Question

Which of √2 and 2 is a zero of the polynomial p(x)=x3-2x? Why

Answer 1

Step-by-step explanation:

Root 2

If x=2 then p(2)=2*2*2-2*2

= 8-4

=4 which is not equal to zero so it is not a zero

If x= root 2

Then 2 root 2- 2 root 2=0

So it is the zero

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