If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2*(cos(x))^2
8546;5
x+y-25;520*x+320*y-9500
-3 = 5-8
1.44;1.2
| 7-2=6 | | h+11.8=-11.8 | | r-9-(-16)=-83 | | -2(3x+4)=18 | | x=631.40*.10 | | -3/5*-3/5 | | 3b-17=4b | | -3/5*-3/5*-3/5 | | 7+6=7 | | 3x^4-8000x^3+6000000x^2=0 | | 6-8x=5x+3 | | 3-ax=5-a | | 6.49+1.78= | | -6n-8=-56 | | 29x+17y=1 | | 17r+20=15r-16 | | 4.4=-t/3.5 | | -(-6-3z-8)= | | 20-3s+2s=-6s-20 | | 9x=3(4-x) | | 3y+1=14x-74 | | 36sin^2=3 | | -10=-0.4k | | 4.27-x=1.5 | | -9z+6=-z+4+2 | | h+13.1=13.1 | | 4x^2+19=5795 | | s*5-35=110 | | 9x^2-54x-5=0 | | (7x-2)(x+11)=0 | | 6x^2=2646 | | 64-x=14 |