rozwiąż równania:
a) x/3 - x/2=2
b)(x-2)(x+3)=x do kwadratu
a) x/3 - x/2=2 /*6
2x-3x=12
-x=12 /:(-1)
x=-12
x^2+3x-2x-6=x^2 (x^2 oznacza x do kwadratu)
x^2+x-x^2=6
x=6
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a) x/3 - x/2=2 /*6
2x-3x=12
-x=12 /:(-1)
x=-12
b)(x-2)(x+3)=x do kwadratu
x^2+3x-2x-6=x^2 (x^2 oznacza x do kwadratu)
x^2+x-x^2=6
x=6