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4*(-1) - (-1)² - 3 = -8
Dla x = 0
4*0 - 0² - 3 = -3
Dla x = 1
4*1 - 1² - 3 = 0
2) dla x=0 4x-x do 2-3=0-0=0-3=3
3) dla x=1 4x-x do 2-3=4-1=3-3=0