Question

If 3 is a zero of find the value of the polynomial x^2+2x-a then find the value of a​

Answer 1

Step-by-step explanation:

15 = a. Now, The polynomial is x² + 2x - 15 . x = -5 , x = 3 . Therefore, the other zero is -5 .

Answer 2

Answer:

if 3 is the zero of the polynomial

p(x)= 0 , where x=3

x²+2x-a = 0

(3)²+2×3-a =0

9+6-a =0

15 = a

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