Option E
The real zeros of function are (-2, 3, -3)
Solution:
Given function is:
To find the zeroes of the function, we just need to evaluate the values and check if the function/expression tends to 0.
Let
On grouping the terms we get,
Taking as common term from first two terms and "9" as common term from last two terms,
Taking (x + 2) as common term,
We know that,
Applying the above identity,
We equate the function to 0 , to find the zeros of polynomial function
(x + 3)(x - 3)(x + 2) = 0
Therefore zeros are:
x + 3 = 0
x = -3
x - 3 = 0
x = 3
x + 2 = 0
x = -2
Thus zeros are (-2, 3, -3) Option E is correct