2cos^2x-6cosx=0

Simple and best practice solution for 2cos^2x-6cosx=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 2cos^2x-6cosx=0 equation:


Simplifying
2cos2x + -6cosx = 0

Reorder the terms:
-6cosx + 2cos2x = 0

Solving
-6cosx + 2cos2x = 0

Solving for variable 'c'.

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

Factor out the Greatest Common Factor (GCF), '2cosx'.
2cosx(-3 + s) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'cosx' equal to zero and attempt to solve: Simplifying cosx = 0 Solving cosx = 0 Move all terms containing c to the left, all other terms to the right. Simplifying cosx = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(-3 + s)' equal to zero and attempt to solve: Simplifying -3 + s = 0 Solving -3 + s = 0 Move all terms containing c to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + s = 0 + 3 Combine like terms: -3 + 3 = 0 0 + s = 0 + 3 s = 0 + 3 Combine like terms: 0 + 3 = 3 s = 3 Add '-1s' to each side of the equation. s + -1s = 3 + -1s Combine like terms: s + -1s = 0 0 = 3 + -1s Simplifying 0 = 3 + -1s The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 2cos^2-6cosx=0 | | X(x)+12x+27=0 | | (6+i)+(7-3i)=0 | | 123=-32+15x | | 6(3x-5)-18x=-30 | | 8(7-1x)=-24 | | 32x+67=102 | | (6i-4)(5i+3)= | | -5x-2(7x+6)=7 | | 3(-4x-15)=2(-6x+6) | | 50.5(x^2-3x+2)=4x^2 | | 2x+71=12x+61 | | 2y+6x=-34 | | x+3x-15=x+35 | | 4x-3ax+6y-10=0 | | 2(W-1)-7=-3(-6W+1)-7W | | 49-2m=4m+14 | | 8.95x+71.6=143.2 | | (8xy+6)(x+y)(x-y)=0 | | x+15+2x=40 | | 5(2x-3)=3+8x-12 | | 3f=-4 | | 6.72x+64=45.1584+8x | | -76-1=-5(6+3) | | -10x-8y=2 | | 0.4(8+x)=3.2+0.7 | | z^4-z^2+1=0 | | 3x+2x^2=-15x | | -2+7x-2x=-2 | | 95=19g | | 6x+2y=-34 | | 9(9-4)=28 |

Equations solver categories