September 2018 1 34 Report

I.Oblicz ;

1.

x+3 5x+4

-------=-------- - 5

0,1 0,4

2.

7x-48 6x+1 31-x

-------- + ---------= 3x- ----------

3 5 2

3.

3(x+2)

x- ----------- > 1+x

4

4.

4x+1

¾x - ------------ > -x - ¾

2

5.

x+4

-------- - x

5 x-1

-------------- < -------

3 2

6.

x+7

3x- -------

6

------------------ > -2

2

7.

6-x x-2 5-x

------ - ------ > -------

4 8 2

II. Doprowadź do najprostszej postaci. następnie obliczich wartość dla odanych wartości zmiennych

1.

-2(3-a-a²)+5(1+a-2a²)-(9a³-12a²-3a):(-3a) dla a= -0,2

2.

(12a⁴b⁴-9a²b³):(-3a²b)-(2+3a²b)·b² dla a= -1 b= -2


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