The Solution:
Given the binomial expression below:
[tex]45a^3-15a^2[/tex]
We are asked to factorize using the greatest common factor (GCF).
So,
The GCF of the binomial expression is
[tex]15a^2[/tex]
So, we shall factor out the GCF as below:
[tex]45a^3-15a^2=15a^2(3a-1)[/tex]
Thus, the correct answer is [option 3]
