F(x)=x^3cos(3x+1)

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Solution for F(x)=x^3cos(3x+1) equation: 


Simplifying
F(x) = x3cos(3x + 1)

Multiply F * x
xF = x3cos(3x + 1)

Reorder the terms:
xF = cosx3(1 + 3x)
xF = (1 * cosx3 + 3x * cosx3)
xF = (1cosx3 + 3cosx4)

Solving
xF = 1cosx3 + 3cosx4

Solving for variable 'x'.

Reorder the terms:
-1cosx3 + -3cosx4 + xF = 1cosx3 + 3cosx4 + -1cosx3 + -3cosx4

Reorder the terms:
-1cosx3 + -3cosx4 + xF = 1cosx3 + -1cosx3 + 3cosx4 + -3cosx4

Combine like terms: 1cosx3 + -1cosx3 = 0
-1cosx3 + -3cosx4 + xF = 0 + 3cosx4 + -3cosx4
-1cosx3 + -3cosx4 + xF = 3cosx4 + -3cosx4

Combine like terms: 3cosx4 + -3cosx4 = 0
-1cosx3 + -3cosx4 + xF = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(-1cosx2 + -3cosx3 + F) = 0


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

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0

Subproblem 2
Set the factor '(-1cosx2 + -3cosx3 + F)' equal to zero and attempt to solve:

Simplifying
-1cosx2 + -3cosx3 + F = 0

Reorder the terms:
F + -1cosx2 + -3cosx3 = 0

Solving
F + -1cosx2 + -3cosx3 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
x = {0}

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