oblicz równanie zwartością bezwzględną 2*(3+2x)=6 (x)=
2*I3+2xI = 6 /:2
I3+2xI = 3
3+2x ≥ 0 => 3+2x = 3
2x = 3-3
2x = 0
x = 0
=====
3+2x < 0 => -3-2x = 3
-2x = 6 /:(-2)
x = -3
Odp. x = -3 v x = 0
2|3+2x|=6
|3+2x|=3
3+2x=3 lub 3+2x=-3
x=0 lub x=-3
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2*I3+2xI = 6 /:2
I3+2xI = 3
3+2x ≥ 0 => 3+2x = 3
2x = 3-3
2x = 0
x = 0
=====
3+2x < 0 => -3-2x = 3
-2x = 6 /:(-2)
x = -3
=====
Odp. x = -3 v x = 0
2|3+2x|=6
|3+2x|=3
3+2x=3 lub 3+2x=-3
x=0 lub x=-3