What is the greatest common factor of the expression 12x^4+18x^2
The greatest common factor of the expression 12x^4 + 18x^2 is 6x^2.
Factor out the greatest common factor by finding the highest power of x that divides evenly into both terms.
12x^4 = 2 * 6 * x^2 * x^2
18x^2 = 2 * 9 * x^2
Therefore, the greatest common factor of 12x^4 + 18x^2 is 6x^2.