Find the zero of the polynomial in each of the following cases:

(i)


(ii)


(iii)


(iv)


(v)


(vi)


(vii)are real numbers.


(i) p (x) = x + 5

p (x) = 0


x + 5 = 0


x = -5


Therefore, x = -5 is a zero of the polynomial p(x) = x + 5


(ii) p (x) = x – 5


p (x) = 0


x – 5 = 0


x = 5


Therefore, x = 5 is a zero of the polynomial p(x) = x - 5


(iii) p (x) = 2x + 5


P (x) = 0


2x + 5 = 0


2x = -5


x =


Therefore, x = is a zero of the polynomial p(x) = 2x + 5


(iv) p (x) = 3x – 2


p (x) = 0


3x – 2 = 0


x =


Therefore, x = is a zero of the polynomial p(x) = 3x - 2


(v) p (x) = 3x


p (x) = 0


3x = 0


x = 0


Therefore, x = 0 is a zero of the polynomial p(x) = 3x


(vi) p (x) = ax


p (x) = 0


ax = 0


x = 0


Therefore, x = 0 is a zero of the polynomial p(x) = ax


(vii) p (x) = cx + d


p (x) = 0


cx + d = 0


x =


Therefore, x = is a zero of polynomial p (x) = cx + d


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