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f(x) = 1 - 8x + 16x² -(4x² + 4x + 1)
f(x) = 1 - 8x +16x² - 4x² - 4x -1
f(x) = 12x² -12x postać ogólna a=12, b= 12 c=0
szukamy rozwiązań
f(x)=0
12x²-12x = 0
12x(x-1) = 0
12x = 0 v x-1 = 0
x=0 v x=1