August 2018 1 12 Report
Rozwiąż równania :
a) (3-x)(x+1)= 7-x(x+2)
b)x²+4x=(x-1)(x+3)-1
c) (x-4)(x+1)+4(x+2)=x²-3
d) x(2-x)+(x+2)(x-2)=2
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