Question

if the three is the zero of the polynomial x square+2x-a find a​

Answer 1

Answer:

answer for the given problem is given

Answer 2

hello!

Answer:

a= 15

Step-by-step explanation:

here, f(3)= 0

f(x) = x^2+2x-a

so,

f(3)= (3)^2+2(3)+a = 0

9+6-a= 0

15-a = 0

implies a= 15

hope it helps!