(6x三次方-12x四次方)除以(3x平方)

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(6x三次方-12x四次方)除以(3x平方)

(6x^3-12x^4)/3x^2
(3x^2)*(2x-4x^2)/(3x^2)
=2x-4x^2

(6x三次方-12x四次方)除以(3x平方)
=6x³÷3x³-12x^4÷3x³
=2-4x

(6x^3-12x^4)÷(3x^2)
=2x-4x^2

东汉