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6*x^4-x^3-14*x^2-x+6;x-1
2*tan(x)*ctg(x)
x-x+1/2-(1/3) = 1/4;x
x
(5)^(-4)
(2*x-4)*(x+1)*(x-2)*(x+3) <= 0;x
x
| x+2x-21=162 | | 0=3c(c+14) | | y=5*(15+2)*(12+3) | | 0=a^2+3a-90 | | p=2.5*115+35 | | 0=3c(-c-14) | | 1/2(2-4x)1/4x | | x^2-75x+1150=0 | | x-3/2=9/2 | | y=5*(5+2)*(12+3) | | 10-x/2=7 | | 9y+y=-50 | | 7+ln(x-2)=8 | | g(x)=5x^2+2x | | 2x+3x+7=-x-42 | | 56=4u+16 | | 8x-2=3x-18 | | g(x)=1/3x-1 | | 2ln(x)=32 | | 3u+12=60 | | Y=-16x^2+74 | | 3x^2-9x-10= | | Y=2cos(x)-5 | | 2s+s=6+24 | | 3n-7=-10-0.75n | | -9y-7=-10y | | 6(x+5)=3x+14 | | 6f-4=7f | | 2.4E-8= | | ln(x+2)+ln(3)=7 | | 0.001= | | 14/21(2/5-1/3) |