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D( x )
x = 0
x^2 = 0
x = 0
x = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
6/(x^2)-(5*x)-(4/x) = 2/x-5 // - 2/x-5
6/(x^2)-(5*x)-(4/x)-(2/x)+5 = 0
6/(x^2)-5*x-4*x^-1-2*x^-1+5 = 0
6*x^-2-5*x^1-6*x^-1+5*x^0 = 0
(5*x^2-5*x^3-6*x^1+6*x^0)/(x^2) = 0 // * x^4
x^2*(5*x^2-5*x^3-6*x^1+6*x^0) = 0
x^2
5*x^2-5*x^3-6*x+6 = 0
{ 1, -1, 2, -2, 3, -3, 6, -6 }
1
x = 1
5*x^2-5*x^3-6*x+6 = 0
1
x-1
-5*x^2-6
5*x^2-5*x^3-6*x+6
x-1
5*x^3-5*x^2
6-6*x
6*x-6
0
-5*x^2-6 = 0
DELTA = 0^2-(-6*(-5)*4)
DELTA = -120
DELTA < 0
x in { 1}
x = 1
| -(3-t)=-6 | | 4b=6-4 | | 3t=-15 | | 5t^2-5t-10= | | 16=-2p | | x+9/10=9/5+x-3/6 | | 4y-2y= | | -12-2m=-6m-8m | | a=pb | | 3X+125.00=650.00 | | 9a+4a=76 | | [2x+9]=1 | | -625000/-37000 | | A(n)=a+(n-1)(d) | | -2+10-4x+2=4x+3+x-13 | | 4x-6(5x+6)-(7-4x)= | | 1/5x=3x-14 | | 250+130x=135+155x | | 9x-(8x+6)=3x-16 | | z/2=z+1/4 | | 3(4+6x)-4x=14(x+1)-2 | | 18x=25.2 | | 11-5r=7-3r | | 4q^5-25q^3=0 | | -4.9x^2+43.4x+6.3=0 | | (1/2)0 | | (x+9)/10=(9/5)+(x-3)/6 | | 11x=10x-4 | | -33=-10k-3 | | -5.2(2t+4)-2.2(4t-6)= | | 2(3x+6x-2)-4(6x+5-x)= | | 0/25 |