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D( x )
x < 0
x < 0
x in <0:+oo)
4*16*x^(1/2)*x^(1/2) = 0
64*x = 0 // : 64
x = 0
x = 0
| a/0.4=75 | | 4x+6+24=180 | | 12x+5=9x+8 | | (3x)(3y)= | | 12t(t+-5)=0 | | (9y)=(7y+14) | | 4+x+-17=22 | | 4y+17=-7(y+7) | | 2x^3-16x^2=14x | | 4s-46=54 | | (0*10)*6=0*(n*6) | | -y^2-y-72=0 | | 3x^2+0.75-1.5=0 | | 1/4*-2/5*=39 | | (100)=0.001 | | 6x-3x+26=5(c+8) | | 15+3v=1+v | | -15m=-10+3 | | -4(y-1)=9y-22 | | 5x+2+2x+38=180 | | 3/5k=9.06 | | 5x+y+4x+2y+90=180 | | (5x)=(6x-3) | | -7=5(y+4)-8y | | 2x/3x-1 | | 5(2a-1)=11a-7 | | 7x-15+x+35=180 | | 3x+3x-10+4x=180 | | 5x+2y+4x+2y+90=180 | | (u-4)*10=90 | | 8p=9-1 | | 6(x+1)=12x-12 |