I --> ten znak to wartość bezwzględna.
I IxI + 3 I = 5
2 × I Ix +3I +5 I = 3
Ix+2I = -1 I(x-2)(x+2)I
||x|+3|=5|x|=5-3|x|=2x=22*||x+3|+5|=3|x+3|+5=3/2|x+3|=3/2-5|x|=3/2-5-3|x|=6,5x=-6,5|x+2|=-1|(x-2)(x+2)||x+2|=-1|xkwadrat+2x-2x-4||x|=-xkwadrat+4-2|x|=-xkwadrat+2
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||x|+3|=5
|x|=5-3
|x|=2
x=2
2*||x+3|+5|=3
|x+3|+5=3/2
|x+3|=3/2-5
|x|=3/2-5-3
|x|=6,5
x=-6,5
|x+2|=-1|(x-2)(x+2)|
|x+2|=-1|xkwadrat+2x-2x-4|
|x|=-xkwadrat+4-2
|x|=-xkwadrat+2