Ix² -1I + Ix-1I + I2x-2I = 0
dzieki za pomoc ;]
x²-1+x-1+2x-2 = 0
x*x- 1+x-1+2x-2= 0
x*x +x +2x = 1+1+2 + 0
x*x +3x = 4
x+3x= 4
4x= 4/ 4
x=1
Spr. 1² - 1 +1 - 1 +2 - 2 = 0
0 = 0
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x²-1+x-1+2x-2 = 0
x*x- 1+x-1+2x-2= 0
x*x +x +2x = 1+1+2 + 0
x*x +3x = 4
x+3x= 4
4x= 4/ 4
x=1
Spr. 1² - 1 +1 - 1 +2 - 2 = 0
0 = 0
x=1