To factor the expression \(2a^3b + 6a^2b^2\) by finding the greatest common factor (GCF):
- Identify the GCF of the coefficients: the GCF of 2 and 6 is 2.
- Identify the common variables: the lowest powers are \(a^2\) and \(b\).
- Therefore, the GCF of the entire expression is \(2a^2b\).
Now, factor \(2a^2b\) out of the expression:
\[ 2a^3b + 6a^2b^2 = 2a^2b(a + 3b) \]
Thus, the expression can be rewritten as:
\[ 2a^2b(a + 3b) \]
The correct response is:
\(2a^2b(a + 3b)\)