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3*x^4+x^3+4*x^2-2*x-1;x^2-1
100*e^-x
(3/7)*x-((1/3)*x) = 4/9
(2-3)/x
(5/6)*r = 15
| 10+5x=3-2x | | 24=n*-4 | | 9x-(3x-12)=42 | | 7(2z-6)=5(x+6) | | u^2+6u+10=0 | | 8t^2+15t+39=0 | | 7x-4x+8=6x-4 | | 3x+9-9x=17-17x+11x-8 | | 18+4x=5+20x | | 3x+9-9x=17-17x+11 | | 49r^3+42r^2-42r-36= | | 2.5y=1.0 | | -4x+12=-8x-7 | | -2-(3-6p)= | | 10x+3=9+4x | | 4x^2+24x+157=0 | | 1/3x1:3= | | 3/7x-1/3x=4/9 | | -5(3m-7n+4p)= | | 7g^3+28g^2+3g+12= | | 4x+125=y | | -9+2x=3(x+2) | | 3x-35=180 | | [x-(5+3i)][x-(5+3i)]=0 | | 7g^3+28g^2= | | 30=20log(x/003) | | 7+15z-2=7z+109-5z | | -26+3x=52+13x | | 5/6r=15 | | 7y^3+9y^2+2y= | | 12=4xnot-8 | | 9y^3+15y^2+4y= |