Wykonaj dzialania :
a) 1/2x-3/8x
b)1/x-4+1/x+4
c)5/x+3-2/x+1
d)2x+1/x+5+3x/x-2
e)x²-4/2x²*x/x-2
f)x²-1/x:x+1/2x²
g)25x²-1/x²-9:5x²+x/2x-6
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a)1/2x-3/8x=4/8x-3/8x=1/8x
b)1/x-4+1/x+4=1/x(-4+4)=1/x
c)5/x+3-2/x-1=5/x-2/x+2=3/x+2
d)2x+1/x+5+3x/x-2=3+2x+1/x+3x/x
e)-----
f)x2-1/x*1/x+1/2x2=x2- 1/x2+1/2x2=x2-3/2x2
g)25x2-1/x2-9/5x2+x/2x-6= 25xkwadrat- 6+x/2x - 14/5xkwadrat