(4x²y²)²÷8y²-(6x^6y^4-2x^2y^2)

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(4x²y²)²÷8y²-(6x^6y^4-2x^2y^2)
(4x²y²)²÷8y²-(6x^6y^4-2x^2y^2)

(4x²y²)²÷8y²-(6x^6y^4-2x^2y^2)
2xy(X3Y-36XY)