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2*x^3
2;3;5;9;0;3
(x^2+2*x)*(2-x)
2*cos(50*pi*x)-sin(50*pi*x)
7*x
| log(x^2+4x+7)=2 | | 5(x+3)-7x=27 | | 2nsquared-3n-20=o | | -13=1-5x+7x | | -3a+7y+7a-5y= | | 4u-3=9 | | 15+6m=3(8m+5) | | x+58=105 | | 4y-4+y+24=6y+20-3y | | 5n+7n=4+92 | | 5+19r-2=9r+15-2r | | 4y^3-7y^2+28=16 | | -7b+5(b-3)=3(5+7b) | | 2(2x+9)=3x+6 | | -4+7+(-4)= | | -36/45= | | -7-7(-7)= | | 32y+12y+3x-5= | | x^3+5x-210=0 | | -5y+23=-8(y-4) | | 2(2x+4)=3x+9 | | lg(1+x)=1+lgx | | 8y-3y+4n= | | Log(9)+log(15)= | | 3/40-1/30 | | 28=5n | | 3x^2+23x+13=0 | | 0.02(6x-3)=0.12(x-2)+0.18 | | 82+40x=62-30x | | N-10/7=10 | | 6x+18y=-9 | | .82+.4x=.62-.3x |