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ln((x^2+1)^(1/2)+x)
1500;407
ln(30/(x+3))
1*x^3-(2*x)+0*x^2-1 = 0
log(9)(x) = 6
| 21ab^2+35a^2b=0 | | 2.5=×/2000 | | 12xy-6x= | | 3h^2=-17-10h | | 1y-0.75=0.5y-9 | | 3h^2=-17-10 | | -7(0.1x+0.2)-1.9=-0.5 | | 7y+2z+6y-5z= | | (2z-9)(1-z)=0 | | 4(-6+x)+7=-3+2(1+6x) | | 2m+9=30 | | 4.5h•1/2 | | 7x+8.78=4x+14 | | 14+19x+x=195 | | 13x+x+72=-23x+x | | Sec^2x+sec^4x=0 | | 7y+2x+6y-5z= | | (-2c+5)(3c-7)= | | -248=62x | | -248=62 | | -9x^5y^3(-3x^8z^2-y-7z^7)= | | 3x+3y-10=7 | | -45+y+3= | | 11x-5=x+6 | | 2x^2-4x-y+3=0 | | -35+7r=4r-(r+7) | | -6*y=4*x^2+7*x+17 | | 119-12.6y=140 | | .6x=97.20 | | t/a-q/a | | x^2-2kx+25=0 | | X/10-6=-2 |