October 2018 1 10 Report

0,1

____________

( 140 7/30 - 138 5/12 ) : 18 ⅙ =

√5 • 125 ⅔ • ( ⅕ ) ⁻²

___________________

25 ⁻ ½ to ma być nad tą 25 =



rozwiąż równanie


a) (x+3)² -1=x²



b) -(1-2x)²+2x=11-(2x-1)(2x+1)


c) 6x-2 3x-4

_______________ = ______________

2x+1 x+2






rozwiąż układ równań


2x+7x=16

4x+3y=10




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