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Step-by-step explanation:
7. let p(x) = x^2 -3
zero of the polynomial is the value of x where p(x) is 0
putting p(x) = 0
x^2 -3= 0
x^2 - (√3)^2 = 0
using a^2-b^2 = (a+b) (a-b)
(x-√3) ( x+√3) = 0
so, x= -√3, √3
so zeroes of p(x) are -√3, √3
8. For a cubic polynomial maximum number of zeroes are three .
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