September 2018 1 23 Report

Pilnie na dzis prosze pomozcie;/ rozwiąż układy równań:
a)\left \{ {{x^{2}=4} \atop {x+y=2}} \right
b)\left \{ {{(x-1)^{7}=-1} \atop {y^{2}-x=9}} \right
c)\left \{ {{y-x^{2}=4} \atop {y+x^{2}=12}} \right
d) \left \{ {{x-\sqrt{y}=0} \atop {x+\sqrt{y}=8}} \right
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