Rozwiąż rownania.
I25x-3I=122
I9-4xI=21
I1-2xI=13
I4xkwadrat-1I=8
I2xkwadrat-17I=1
Prosze o pełne rozwiazania : ))
daje naj ;d
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|25x-3|= 122
25x-3 = 122 v 25x-3 = -122
25x=122 - 3 v 25x= -122 -3
x= 4,76 v x= -5
|9-4x|=21
9-4x= 21 v 9-4x= -21
-4x= 12 v -4x= -30
x= -3 v x= 7,5 (7½)
|1-2x|=13
1-2x=13 v 1-2x = -13
-2x=12 v -2x = -14
x= -6 v x= 7
|4xkwadrat-1| = 8
4xkwadrat-1 = 8 v 4xkwadrat-1= -8
4xkwadrat = 9 v 4xkwadrat = -7
xkwadrat = 9/4<to jest ulamek> v xkwadrat = -7/2 <sprzecznosc > chyba wiadomo
|2xkwadrat-17| = 1
2xkwadrat-17=1 v 2xkwadrat-17 = -1
2xkwadrat = 18 v 2xkwadrat = 16
xkwadrat= 9 v xkwadrat =8
x= 3 v x= 2√2