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= 4x^2 - 12x +9 - 4 (x^2 - 2x +1)
= 4x^2 - 12x +9 -4x^2 + 8x -4
=-4x+5
= 4x^2 - 12x +9 - 4 (x^2 - 2x +1)
= 4x^2 - 12x +9 -4x^2 + 8x -4
=-4x+5
smga brmnfaat ^^