(x²-6x+9)÷(x-3)

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(x²-6x+9)÷(x-3)

(x²-6x+9)÷(x-3)
(x²-6x+9)÷(x-3)

(x²-6x+9)÷(x-3)
=(x-3)^2÷(x-3)
=x-3