45
It's the general form of a quadratic expression and it can be factored providing its discriminant is not less than zero.
This expression can not be factored. It is already in it's simplest state.
6•2+6•3
You can't know if a general polynomial is in factored form.
If you mean (1+2x)2, that is already factored.
If a number cannot be factored it is a prime number.
When the expression is broken down into its prime factors it is factored completely.
8
The expression cannot be factored.
The question does not contain an expression that can be factorised.
It cannot be factored because the discriminant of the quadratic expression is less than zero
It cannot be factored because the discriminant of this quadratic expression is less than zero.
This quadratic expression cannot be factored because its discriminant is less than zero.
This quadratic expression cannot be factored because its discriminant is less than zero
45
It is irreducible, it can't be factored.