Answer:
2x^2
Explanation:
The coefficients of the terms in this expression are 8, 4, and 18.
The largest number that you can divide all of them with and get a whole number is 2.
So, 2 is part of our greatest common factor.
These terms also have the variable x. The exponent of the smallest x term is 2, so x^2 is the other part of our greatest common factor.