P(x)=7x^3+23x^2-21x-4

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Solution for P(x)=7x^3+23x^2-21x-4 equation: 


Simplifying
P(x) = 7x3 + 23x2 + -21x + -4

Multiply P * x
xP = 7x3 + 23x2 + -21x + -4

Reorder the terms:
xP = -4 + -21x + 23x2 + 7x3

Solving
xP = -4 + -21x + 23x2 + 7x3

Solving for variable 'x'.

Reorder the terms:
4 + 21x + xP + -23x2 + -7x3 = -4 + -21x + 23x2 + 7x3 + 4 + 21x + -23x2 + -7x3

Reorder the terms:
4 + 21x + xP + -23x2 + -7x3 = -4 + 4 + -21x + 21x + 23x2 + -23x2 + 7x3 + -7x3

Combine like terms: -4 + 4 = 0
4 + 21x + xP + -23x2 + -7x3 = 0 + -21x + 21x + 23x2 + -23x2 + 7x3 + -7x3
4 + 21x + xP + -23x2 + -7x3 = -21x + 21x + 23x2 + -23x2 + 7x3 + -7x3

Combine like terms: -21x + 21x = 0
4 + 21x + xP + -23x2 + -7x3 = 0 + 23x2 + -23x2 + 7x3 + -7x3
4 + 21x + xP + -23x2 + -7x3 = 23x2 + -23x2 + 7x3 + -7x3

Combine like terms: 23x2 + -23x2 = 0
4 + 21x + xP + -23x2 + -7x3 = 0 + 7x3 + -7x3
4 + 21x + xP + -23x2 + -7x3 = 7x3 + -7x3

Combine like terms: 7x3 + -7x3 = 0
4 + 21x + xP + -23x2 + -7x3 = 0

The solution to this equation could not be determined.

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