4cos^2(x)+2cos(x)-2sqrt(2)cos(x)-sqrt(2)=0

Simple and best practice solution for 4cos^2(x)+2cos(x)-2sqrt(2)cos(x)-sqrt(2)=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 4cos^2(x)+2cos(x)-2sqrt(2)cos(x)-sqrt(2)=0 equation: 


Simplifying
4cos2(x) + 2cos(x) + -2sqrt(2) * cos(x) + -1sqrt(2) = 0

Multiply cos2 * x
4cos2x + 2cos(x) + -2sqrt(2) * cos(x) + -1sqrt(2) = 0

Multiply cos * x
4cos2x + 2cosx + -2sqrt(2) * cos(x) + -1sqrt(2) = 0

Reorder the terms for easier multiplication:
4cos2x + 2cosx + -2 * 2qrst * cos * x + -1sqrt(2) = 0

Multiply -2 * 2
4cos2x + 2cosx + -4qrst * cos * x + -1sqrt(2) = 0

Multiply qrst * cos
4cos2x + 2cosx + -4coqrs2t * x + -1sqrt(2) = 0

Multiply coqrs2t * x
4cos2x + 2cosx + -4coqrs2tx + -1sqrt(2) = 0

Reorder the terms for easier multiplication:
4cos2x + 2cosx + -4coqrs2tx + -1 * 2qrst = 0

Multiply -1 * 2
4cos2x + 2cosx + -4coqrs2tx + -2qrst = 0

Reorder the terms:
-4coqrs2tx + 2cosx + 4cos2x + -2qrst = 0

Solving
-4coqrs2tx + 2cosx + 4cos2x + -2qrst = 0

Solving for variable 'c'.

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

Add '2qrst' to each side of the equation.
-4coqrs2tx + 2cosx + 4cos2x + -2qrst + 2qrst = 0 + 2qrst

Combine like terms: -2qrst + 2qrst = 0
-4coqrs2tx + 2cosx + 4cos2x + 0 = 0 + 2qrst
-4coqrs2tx + 2cosx + 4cos2x = 0 + 2qrst
Remove the zero:
-4coqrs2tx + 2cosx + 4cos2x = 2qrst

Combine like terms: 2qrst + -2qrst = 0
-4coqrs2tx + 2cosx + 4cos2x + -2qrst = 0

Factor out the Greatest Common Factor (GCF), '2s'.
2s(-2coqrstx + cox + 2cosx + -1qrt) = 0

Ignore the factor 2.

Subproblem 1
Set the factor 's' equal to zero and attempt to solve:

Simplifying
s = 0

Solving
s = 0

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

Add '-1s' to each side of the equation.
s + -1s = 0 + -1s
Remove the zero:
0 = -1s

Simplifying
0 = -1s

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 '(-2coqrstx + cox + 2cosx + -1qrt)' equal to zero and attempt to solve:

Simplifying
-2coqrstx + cox + 2cosx + -1qrt = 0

Reorder the terms:
-2coqrstx + 2cosx + cox + -1qrt = 0

Solving
-2coqrstx + 2cosx + cox + -1qrt = 0

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

Add 'qrt' to each side of the equation.
-2coqrstx + 2cosx + cox + -1qrt + qrt = 0 + qrt

Combine like terms: -1qrt + qrt = 0
-2coqrstx + 2cosx + cox + 0 = 0 + qrt
-2coqrstx + 2cosx + cox = 0 + qrt
Remove the zero:
-2coqrstx + 2cosx + cox = qrt

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:

| -16t^2+96t+5=0 | | 4x-37=49 | | 21/5/x=10 | | -16x^2+54x+2=64 | | -9(n-4)-(8n-5)=-18n | | -2x-6(2x+16)=-194 | | x^2-18x+81=-64 | | 15(v+4)-3v=3(4v+2)-14 | | 0.25x^2+1.5x+2=0 | | 10+18+40+30-2=y | | 21/5/x | | 9x=6(x+25) | | p=0.2 | | 44+3x(x+20)=180 | | 5x^2-10x-25=47 | | .02(6c-60)=-.6(c-4) | | 9x=6(x-25) | | x+18=3x-2 | | .36(24)+.06x=.12(18+x) | | 16=2/4 | | 2m+3+m+9+m-1=180 | | k=15-19 | | 6t+2=2t+2 | | [-5/7][-21/10] | | x^2=-8+20 | | 2x-2(5x+12)=8 | | 5-20/x^2 | | -6w-17=1 | | 43w^2+14w=0 | | 9y-4=y-8 | | ax^2+x-6=0 | | 6b^2+60b+126= |

Equations solver categories