October 2018 1 22 Report

zad 1 układy równań

Przykład a

 \left \{ {{4x+3y=26} \atop {x+y=8}} \right.

przykład b

\left \{ {{3(x+y)-2(x-y)= -1 } \atop {x-2(x+y)=3}} \right.

przykłąd c

 \left \{ {{4(x-1)-5(y+2)=x-3y} \atop {\frac{x+1}{5}-\frac{1-y}{2}=y+\frac{x}{4}} \right.

zad 2 wykonaj działania

a)

\frac{\sqrt{50}-\sqrt{18}}{\sqrt{2}}

b)\sqrt{200+\sqrt{625}}

c)\sqrt{49}+3\sqrt{16}-(\sqrt{25})^2


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