P(x)=-x^4+5x^3-8x+45

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Solution for P(x)=-x^4+5x^3-8x+45 equation: 


Simplifying
P(x) = -1x4 + 5x3 + -8x + 45

Multiply P * x
xP = -1x4 + 5x3 + -8x + 45

Reorder the terms:
xP = 45 + -8x + 5x3 + -1x4

Solving
xP = 45 + -8x + 5x3 + -1x4

Solving for variable 'x'.

Reorder the terms:
-45 + 8x + xP + -5x3 + x4 = 45 + -8x + 5x3 + -1x4 + -45 + 8x + -5x3 + x4

Reorder the terms:
-45 + 8x + xP + -5x3 + x4 = 45 + -45 + -8x + 8x + 5x3 + -5x3 + -1x4 + x4

Combine like terms: 45 + -45 = 0
-45 + 8x + xP + -5x3 + x4 = 0 + -8x + 8x + 5x3 + -5x3 + -1x4 + x4
-45 + 8x + xP + -5x3 + x4 = -8x + 8x + 5x3 + -5x3 + -1x4 + x4

Combine like terms: -8x + 8x = 0
-45 + 8x + xP + -5x3 + x4 = 0 + 5x3 + -5x3 + -1x4 + x4
-45 + 8x + xP + -5x3 + x4 = 5x3 + -5x3 + -1x4 + x4

Combine like terms: 5x3 + -5x3 = 0
-45 + 8x + xP + -5x3 + x4 = 0 + -1x4 + x4
-45 + 8x + xP + -5x3 + x4 = -1x4 + x4

Combine like terms: -1x4 + x4 = 0
-45 + 8x + xP + -5x3 + x4 = 0

The solution to this equation could not be determined.

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