II gimnazjum

Matematyka wokół nas 2

a)   ∣x∣=8 x=8 x=−8   b) ∣x∣=0 x=0     c)   ∣x∣=512 x=512 x=−512   d)   ∣x∣=3,5   x=3,5   x=−3,5     e) ∣x∣=81​ x=81​ x=−81​   f) ∣x∣=372​   x=372​   x=−372​

Rozwiązanie 1

`"a)"\ |x|      ∣x∣&lt;87​    <img style="vertical-align:middle;" src="../../../math/formula?%5Cdisplaystyle-%5Cfrac%7B%7B7%7D%7D%7B%7B8%7D%7D%3C%7Bx%7D%3C%5Cfrac%7B%7B7%7D%7D%7B%7B8%7D%7D">            ​   b) ∣x∣&gt;<svg xmlns="http://www.w3.org/2000/svg" width='0.333em' height='2.400em' viewBox='0 0 333 2400'><path d='M145 15 v585 v1200 v585 c2.667,10,9.667,15,21,15
c10,0,16.667,-5,20,-15 v-585 v-1200 v-585 c-2.667,-10,-9.667,-15,-21,-15
c-10,0,-16.667,5,-20,15z M188 15 H145 v585 v1200 v585 h43z'/></svg>​−141​<svg xmlns="http://www.w3.org/2000/svg" width='0.333em' height='2.400em' viewBox='0 0 333 2400'><path d='M145 15 v585 v1200 v585 c2.667,10,9.667,15,21,15
c10,0,16.667,-5,20,-15 v-585 v-1200 v-585 c-2.667,-10,-9.667,-15,-21,-15
c-10,0,-16.667,5,-20,15z M188 15 H145 v585 v1200 v585 h43z'/></svg>​      ∣x∣&gt;141​     `x&gt;1 1/4\ \ \ \ "lub" \ \ \ \ \ x              ​

a) ∣x∣&lt;2

a) 
| x - 2 | = 1 
x - 2 = 1 ==&gt; x = 3

Roˊwnanie to nie ma rozwiązanˊ.

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