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231101data
@231101data
August 2021
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Lesben
10/(xˇ2-4) - 3/(2x-4) = 1/2
10/(x+2)(x-2) - 3/2.(x-2) = 1/2 /.2.(x+2)(x-2)
2.10 - 3(x+2) = (x+2)(x-2)
20-3x-6=xˇ2-4
14-3x=xˇ2-4
xˇ2+3x-18=0 , D=9+72=81,VD=V(81)=9
x1=1/2(-3+9)=1/2.6=3, x1=3
x2=1/2(-3-9)=1/2(-12)=-6, x2=-6
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Answers & Comments
10/(x+2)(x-2) - 3/2.(x-2) = 1/2 /.2.(x+2)(x-2)
2.10 - 3(x+2) = (x+2)(x-2)
20-3x-6=xˇ2-4
14-3x=xˇ2-4
xˇ2+3x-18=0 , D=9+72=81,VD=V(81)=9
x1=1/2(-3+9)=1/2.6=3, x1=3
x2=1/2(-3-9)=1/2(-12)=-6, x2=-6