Doprowadź wyrażenie do najprostszej postaci 2(3-2x)^2-(3x-1)-(3x+1)-2(x+3)^2
2(3-2x)^2-(3x-1)-(3x+1)-2(x+3)^2 =
2(9 - 12x + 2x^2) - 3x + 1 - 3x - 1 -2(x^2 + 6x + 9) =
18 - 24x + 4x^2 - 6x - 2x^2 - 12x - 18 =
2x^2 - 42x
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2(3-2x)^2-(3x-1)-(3x+1)-2(x+3)^2 =
2(9 - 12x + 2x^2) - 3x + 1 - 3x - 1 -2(x^2 + 6x + 9) =
18 - 24x + 4x^2 - 6x - 2x^2 - 12x - 18 =
2x^2 - 42x