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D( x )
x < 0
x < 0
x in <0:+oo)
18*x^(11/2) = 0
18*x^(11/2) = 0 // : 18
x^(11/2) = 0
x = 0
x = 0
| 4+4m=24 | | 5z=y+20 | | 7w+4y+7x+5x-13y+3w= | | (-1)(-2)(-7)= | | -3(x-y)=y+10 | | 2x-6=24+4x | | (3/4)=r=9=60 |