40x^3-60x^2-42x+20=0

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Solution for 40x^3-60x^2-42x+20=0 equation: 


Simplifying
40x3 + -60x2 + -42x + 20 = 0

Reorder the terms:
20 + -42x + -60x2 + 40x3 = 0

Solving
20 + -42x + -60x2 + 40x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(10 + -21x + -30x2 + 20x3) = 0

Ignore the factor 2.

Subproblem 1
Set the factor '(10 + -21x + -30x2 + 20x3)' equal to zero and attempt to solve:

Simplifying
10 + -21x + -30x2 + 20x3 = 0

Solving
10 + -21x + -30x2 + 20x3 = 0

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.

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