Answer:
6x²(2x² + x + 3)
Explanation:
We factor this by factoring out the GCF.
The largest number that will divide into 12, 6 and 18 is 6.
Since all of the powers of x have an exponent of at least 2, we can factor out an x² as well.
This gives us 6x² on the outside.
12/6 = 2; x⁴/x² = x²
6/6 = 1; x³/x² = x
18/6 = 3; x²/x² = 1
This gives us
6x²(2x² + x + 3)