3cos^2x-8cosx+4=0

Simple and best practice solution for 3cos^2x-8cosx+4=0 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 3cos^2x-8cosx+4=0 equation:


Simplifying
3cos2x + -8cosx + 4 = 0

Reorder the terms:
4 + -8cosx + 3cos2x = 0

Solving
4 + -8cosx + 3cos2x = 0

Solving for variable 'c'.

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

Add '-4' to each side of the equation.
4 + -8cosx + -4 + 3cos2x = 0 + -4

Reorder the terms:
4 + -4 + -8cosx + 3cos2x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -8cosx + 3cos2x = 0 + -4
-8cosx + 3cos2x = 0 + -4

Combine like terms: 0 + -4 = -4
-8cosx + 3cos2x = -4

Reorder the terms:
4 + -8cosx + 3cos2x = -4 + 4

Combine like terms: -4 + 4 = 0
4 + -8cosx + 3cos2x = 0

The solution to this equation could not be determined.

See similar equations:

| 6x-3=23 | | 8(5-h)=2(2-4) | | 2x+100=5 | | 2(3-(5-5x))-x=-10+3(2+3x) | | 4(t+4)=4(t+3) | | 6x-9-4x=4x-8 | | 3-4y/6-2y-3/82-y | | 0.3=log(B) | | 7-21-3=2x | | 40a^2-42a-9=0 | | 7-21-3=2z | | 6x-8-4x=6x-5 | | 6x-2(x-7)=4(x+1)+7 | | 3y+2(y-6)=8y-5(y-10) | | -7x-8y=-26 | | x^2+x+10=120 | | 9a/13+12=4a+2/3 | | 6(x-4)+2x=8(x+3)-48 | | 1/4log16-1/3log27=logx | | x^2-2x+7-c=0 | | 2x-3+3-2x=1 | | 40n+8(1.5n)=650 | | 14x+7y=18 | | ln(5x-3)=24 | | (P-6.48)/P=0.4 | | (4a-6)(8a^2+2a-3)= | | x+599=7.79 | | 7(x+4)+2=7x+7 | | x+2=13+2 | | 2u-v=6 | | 4x^5+30=210 | | 7/5·2/7= |

Equations solver categories