Answer:
a:x=-3
c:x=1
Step-by-step explanation:
The zeros of a function are the values of x for which the value of the function f(x) becomes zero.
In this problem, we have the following function:

Here we want to find the zeros of the function, i.e. the values of x for which

In order to make f(x) equal to zero, either one of the factors
or
must be equal to zero.
Therefore, the two zeros can be found by requiring that:
1)

2)

So the correct options are
a:x=-3
c:x=1
I think that whole numbers and natural numbers are the same set:- 1, 2, 3, 4 etc
3 1/3, 7-3 2/3=3 1/3, use absolute value
Answer = the value in the second picture or middle
The one in the second picture
The bar on top of the numbers 12 means that the 12 keeps on re-occurring