P(x)=2x^3-42x+40

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Solution for P(x)=2x^3-42x+40 equation: 


Simplifying
P(x) = 2x3 + -42x + 40

Multiply P * x
xP = 2x3 + -42x + 40

Reorder the terms:
xP = 40 + -42x + 2x3

Solving
xP = 40 + -42x + 2x3

Solving for variable 'x'.

Reorder the terms:
-40 + 42x + xP + -2x3 = 40 + -42x + 2x3 + -40 + 42x + -2x3

Reorder the terms:
-40 + 42x + xP + -2x3 = 40 + -40 + -42x + 42x + 2x3 + -2x3

Combine like terms: 40 + -40 = 0
-40 + 42x + xP + -2x3 = 0 + -42x + 42x + 2x3 + -2x3
-40 + 42x + xP + -2x3 = -42x + 42x + 2x3 + -2x3

Combine like terms: -42x + 42x = 0
-40 + 42x + xP + -2x3 = 0 + 2x3 + -2x3
-40 + 42x + xP + -2x3 = 2x3 + -2x3

Combine like terms: 2x3 + -2x3 = 0
-40 + 42x + xP + -2x3 = 0

The solution to this equation could not be determined.

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