Polynomials Not Simplified as Product of 2 First Degree Equations

Q.

Which of the following about $x^2+9$ is true?

1. $x^2+9$ cannot be split into the product of first degree factors.

2. $x^2+9$ can be split into the product of first degree factors.

3. We cannot determine if we can find factors

4. $x^2+9$ is an equation

Q.

$x^2+5$ cannot be split into the product of first degree factors.

1. True

2. False

Q.

$x^2+2$ can be split into the product of first degree factors.

1. True

2. False

Q. Factorise $x^2+3x+2$ by using the Factor Theorem.