(Cosx-4)(cosx+1)=0

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Solution for (Cosx-4)(cosx+1)=0 equation: 


Simplifying
(Cosx + -4)(cosx + 1) = 0

Reorder the terms:
(-4 + osxC)(cosx + 1) = 0

Reorder the terms:
(-4 + osxC)(1 + cosx) = 0

Multiply (-4 + osxC) * (1 + cosx)
(-4(1 + cosx) + osxC(1 + cosx)) = 0
((1 * -4 + cosx * -4) + osxC(1 + cosx)) = 0
((-4 + -4cosx) + osxC(1 + cosx)) = 0
(-4 + -4cosx + (1 * osxC + cosx * osxC)) = 0

Reorder the terms:
(-4 + -4cosx + (co2s2x2C + 1osxC)) = 0
(-4 + -4cosx + (co2s2x2C + 1osxC)) = 0
(-4 + -4cosx + co2s2x2C + 1osxC) = 0

Solving
-4 + -4cosx + co2s2x2C + 1osxC = 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 + -4cosx + co2s2x2C + 4 + 1osxC = 0 + 4

Reorder the terms:
-4 + 4 + -4cosx + co2s2x2C + 1osxC = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -4cosx + co2s2x2C + 1osxC = 0 + 4
-4cosx + co2s2x2C + 1osxC = 0 + 4

Combine like terms: 0 + 4 = 4
-4cosx + co2s2x2C + 1osxC = 4

Add '-1osxC' to each side of the equation.
-4cosx + co2s2x2C + 1osxC + -1osxC = 4 + -1osxC

Combine like terms: 1osxC + -1osxC = 0
-4cosx + co2s2x2C + 0 = 4 + -1osxC
-4cosx + co2s2x2C = 4 + -1osxC

Reorder the terms:
-4 + -4cosx + co2s2x2C + osxC = 4 + -1osxC + -4 + osxC

Reorder the terms:
-4 + -4cosx + co2s2x2C + osxC = 4 + -4 + -1osxC + osxC

Combine like terms: 4 + -4 = 0
-4 + -4cosx + co2s2x2C + osxC = 0 + -1osxC + osxC
-4 + -4cosx + co2s2x2C + osxC = -1osxC + osxC

Combine like terms: -1osxC + osxC = 0
-4 + -4cosx + co2s2x2C + osxC = 0

The solution to this equation could not be determined.

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