It is a function and yeas
Answer:
factorize form of the equation is
, where 
Step-by-step explanation:
Given Equation:
Adding the terms of 'x' and taking constants on the other side.

The sign of the constant will change on changing the side of it.



So, the value of 'x' is 1
The factorized form of the equation can be made by taking the common value from the equation i.e


The degree is 3, the zeros are; 4, 2i, -2i and a point is (-48, 2)
For zeros; 2i, -2i <-- complex conjugates, always in pairs

= -4(i²=-1)
=5

=0
Therefore the equation is; a(

+5) <-- b value is zero
Rewrite the equation with all zeros;
a(x-4)(x²+5)=f(x) <-- put in coordinates of the points to find the value of x
a(2-4)(2²+5)=-48
a(2)(9)=-48
a=-48/18
a=-8/3
The final polynomial function is; (-8/3)(x-4)(x²+5)=f(x)
Hope I helped :)