Which of the following is a factor of 2x4 + 22x3 + 60x2?
2x3
x4
x + 4
x + 5

For the answer to the question above, 
2x^4 + 22x^3 + 60x^2 

GCF: 2x^2 

2x^2(x^2 + 11x + 30) =
So the following factor for the problem above is
2x^2(x + 6)(x + 5) 

If you want to double check, just multiply the answer.
I hope my answer helped you.

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