Theo factored a greatest common factor (GCF) of 3x^2y

from the expression 15x^3y^2-6x^4y^3+9x^2y2.
What error did Theo make, if any?

Theo could have factored a higher coefficient from the expression.

Theo could have factored an additional y variable from the expression.

Theo didn't make an error. He factored the correct GCF.

Theo could have factored an additional x variable from the expression

Theo could have factored an additional y variable from the expression

No, The correct factored expression would be 3x^2y^2(5x-2x^2y+3).

Apologies for the error in my response. You are correct. The correct factored expression would be 3x^2y^2(5x-2x^2y+3). Theo could have factored an additional y^2 variable from the expression. Thank you for pointing that out.

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Yes, that is correct. Theo factored out the GCF of 3x^2y, but he could have also factored out an additional y variable from the expression. The correct factored expression would be 3x^2y(5x-2x^2y+3y).