rozwiąż równania
zadanie w załączniku.
d)
2x(x-1)=2(x-1)(x+3)
2x2-2x=2(x2+3x-x-3)
2x2-2x=2x2+6x-2x-6
x2x-2x2-2x-6x+2x=-6
-6x=-6
x=1
e)
x/2 - x/3 +1 =1/6 (x+6) /* 6
3x-2x+6=x+6
3x-2x-x=6-6
0=0
F)
x-1/4 - x+1/2 = -x/4 / * 4
x-1 - 2(x+1)=-x
x-1-2x-2=-x
x-2x+x=3
0=3
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d)
2x(x-1)=2(x-1)(x+3)
2x2-2x=2(x2+3x-x-3)
2x2-2x=2x2+6x-2x-6
x2x-2x2-2x-6x+2x=-6
-6x=-6
x=1
e)
x/2 - x/3 +1 =1/6 (x+6) /* 6
3x-2x+6=x+6
3x-2x-x=6-6
0=0
F)
x-1/4 - x+1/2 = -x/4 / * 4
x-1 - 2(x+1)=-x
x-1-2x-2=-x
x-2x+x=3
0=3