ROZWIĄŻ RÓWNANIE:
(x-3)²-(x+5x-5)=40
+ - x + 5x - 5= 40x+9-x+5x-5=40
5x+4=40
5x=40-4
5x=36 |:5
x= 7,2
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+ - x + 5x - 5= 40
x+9-x+5x-5=40
5x+4=40
5x=40-4
5x=36 |:5
x= 7,2