4cos^2x-2cosx=1

Simple and best practice solution for 4cos^2x-2cosx=1 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4cos^2x-2cosx=1 equation:


Simplifying
4cos2x + -2cosx = 1

Reorder the terms:
-2cosx + 4cos2x = 1

Solving
-2cosx + 4cos2x = 1

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Reorder the terms:
-1 + -2cosx + 4cos2x = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -2cosx + 4cos2x = 0

The solution to this equation could not be determined.

See similar equations:

| 7x+9x-60=40-4x | | (6x*6x)-7x-14=6 | | 3.5(8x+6)= | | 7x-3x+(2-3x)=100 | | y=4x^2-16x+11 | | 28+19x=-8+15w | | (w+9)2= | | 2x/-3x/6=1/6 | | 9.99y+13.95z-100= | | 7x-48=-6 | | 2x+3(x-6)=22 | | x^2-2x+k(3k+2)=0 | | z+8=40 | | -x^3-5x^2-4x+14=0 | | [x^3/2]^4 | | 2y=-15y | | 30k+70=20+100 | | 4[x+5]=36 | | -1x+8=-13+6x | | 27x-63=10x+35 | | 2(5-1)=6 | | 5+2x=4x+1 | | 2g+24=5g+15 | | 5(x+8)=2x-26 | | 7(x+4)-14=0 | | 3*x+20=180 | | 2v+17=37 | | (60+4x)-90=180 | | 175m-125m+47750=50000-200m | | -X+237=168 | | 66=4y+14 | | d=2r+12 |

Equations solver categories