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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
x/x-2 = 0
-1 = 0
x belongs to the empty set
x belongs to the empty set
| 840=p(12+20) | | Y-10=-(x-3) | | p-(-6-7)=13-14 | | -5x-40=5(2x+1) | | (5c-2)(c-4)= | | 5.39x^2-10.27x+4.22=0 | | (3x+4)(x^2+px+5)=-23x^2 | | 3/5*(-8)*2/-9 | | t^2-3t=9 | | (7M+3N-11-2M)+(5-M-3N+8)= | | 8t=1-9 | | y-1=3x-6 | | 5.38x^2-10.14x+3.77=0 | | 7m^2+14m-36=0 | | -1-3x+6=6 | | -5c+9c=-30 | | 2x+6y+4-2y-4x-7= | | 5(9x-7)=33 | | 5×=1/3(-6x-9) | | h=t^2+4t+12 | | (7M+3N-11-2M)+5-M-3N+8= | | t+14=-3 | | .25x+.3x+8=22 | | 2r+12=29 | | 7p-6+4p=38 | | 19=2u-9 | | -12=k/5-8 | | 5(5y-8)-(5y+4)= | | 0=pi^2*sin(pi*x) | | x-0.06x=56 | | 5/8p=160 | | -12+5k=15 |