Solving the equality, it is found that the missing factor that makes the equality true is C = 3x³.
It is the same as the variable that we want to find the value, generally called x, hence we just solve the equality.
In this problem, the equality is:
[tex](4x^2)C = 12x^5[/tex]
Hence:
[tex]C = \frac{12x^5}{4x^2}[/tex]
[tex]C = 3x^3[/tex]
Thus, the missing factor that makes the equality true is C = 3x³.
You can learn more about missing factors at https://brainly.com/question/24348029