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(2*x+1)/sin(x)
1;2
1*x^4-(2*x^2)+0*x^3+0*x-15 = 0;x
x
1*x^4-(2*x^2)+0*x^3+0*x+15 = 0;x
x
1/2*x^4+3/2*x^3-4*x^2-6*x+8;1/2*x+2
| 3x-5*2x+10=0 | | sin^2(2x)-3cos(2x)=3 | | 82=4y-3 | | 12/x=6/10 | | 15t-5+t=-2t+3 | | 6+55x=-8+8x | | 14x/3=5 | | 16x^2+y^2-8y=0 | | 12x/2=9.5 | | 4.5r=234 | | 15t-5+t=2t+3 | | 9a+2b+5a+8b= | | 46=5x-7 | | 7x=14/3= | | 46=5*-7 | | 2t=18.62 | | 18=2y+9 | | =18.6 | | 10(d+4)=4 | | 12-6p=p-9 | | [3-2(x+1)]=5 | | 5*25(3x)=125 | | -6+4f=8+2 | | 7=4-b | | 24x^2-39=-26x | | x+4[3-2(x+1)]=5[x-3(2x-4)]+1 | | 12+c=17 | | 3+3e=9 | | 12a-6b/2 | | Gf(x)=2x^2+20x | | 2(12+19y+5y^2)=0 | | ln(x)=2-x^2 |