Find the zeros of the function f(x)=x^2+2x-15 explain how this process could be used to solve for the solutions the quadratic equation x^2+2x-15=0

PLEAS ANSWER SOOONN

3  , -5

Step-by-step explanation:

hello :

f(x)=x²+2x-15

compliting squard  :  f(x)=(x²+2x+1) - 1-15

f(x) = (x+1)²-16

f(x) = 0 means :  (x+1)²-4² =0

by identity : a²-b² =(a-b)(a+b)a=x+1  and  b= 4

(x+1-4)(x+1+4) = 0

(x-3)(x+5)=0

x-3=0  or x+5=0    so : x=3  or x= -5

the zeros of the function f(x)=x^2+2x-15 are : 3  , -5