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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(4*x^-2)/3 = 0
4/3*x^-2 = 0 // : 4/3
x^-2 = 0
x naleu017Cy do O
x belongs to the empty set
| 19x-5=7+16x | | f[g(x)]=6(7x^2) | | 12+6q=17+5q | | 2.5y-10=-0.5 | | -7/5+3/5=-1/-7w+6/7w | | (5x+8)-(4x+3)=0 | | -x-6y=31(5) | | 12x^2+23y+15=0 | | a(2x+3)=9x+15+x | | A=1/2(3)(9)(11) | | A=1/2(10)(6) | | 5x-14(4)=21 | | -5+2p=-11 | | 14.75+d=75 | | 14.75+d=50 | | 3*2-5y=-15 | | x^2-3x+6=10 | | 320+80x=7208-300x | | 12+14=26 | | 9+6=15 | | -6+2.5d=144 | | -6+2.5d=44 | | 5(3-w)=12 | | -3/5z=-12 | | 0.5x-3+3=0.3+4+3 | | 8=6z+3 | | -9(1)+5y=-9 | | 8=6x+3 | | 13+5.5d=7.5 | | 8=6+3 | | (4-2+5)w=25 | | (12-7)+x= |