ans (-3,0):(3,0)
I'm not sure but hope this helps
Given Function : f(x) = x² - 9
We can notice that : The function f(x) is zero for only two values of x and they are -3 and 3
⇒ f(-3) = (-3)² - 9 = (9 - 9) = 0
⇒ f(3) = (3² - 9) = (9 - 9) = 0
⇒ The ordered pairs of the zeroes : (-3 , 0) ; (3 , 0)
