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a1 = |m-2|
a2 = -0,2
a1 * a2 = -1
podstawiamy:
|m-2|* (-0,2) = -1
|m-2| * 1/5 = 1
|m-2|=5
m-2 = 5 lub m-2 = -5
m = 7 lub m = -3