Rozwiąż równanie -x - x2 = 1 - (x + 2)
-x - x2 = 1 - (x + 2)
-x - x2 = 1 -x-2/+x
-x2=-1/*(-1)
x2=1
x=pierwiastek z 1
x=1
-x-x2=1-(x+2)
-x-x2+x=1-2
-x2=-1/:(-1)
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-x - x2 = 1 - (x + 2)
-x - x2 = 1 -x-2/+x
-x2=-1/*(-1)
x2=1
x=pierwiastek z 1
x=1
-x-x2=1-(x+2)
-x-x2+x=1-2
-x2=-1/:(-1)
x=1