W^3-7w^2-3w+21=0

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Solution for W^3-7w^2-3w+21=0 equation:


Simplifying
W3 + -7w2 + -3w + 21 = 0

Reorder the terms:
21 + W3 + -3w + -7w2 = 0

Solving
21 + W3 + -3w + -7w2 = 0

Solving for variable 'W'.

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

Add '-21' to each side of the equation.
21 + W3 + -3w + -21 + -7w2 = 0 + -21

Reorder the terms:
21 + -21 + W3 + -3w + -7w2 = 0 + -21

Combine like terms: 21 + -21 = 0
0 + W3 + -3w + -7w2 = 0 + -21
W3 + -3w + -7w2 = 0 + -21

Combine like terms: 0 + -21 = -21
W3 + -3w + -7w2 = -21

Add '3w' to each side of the equation.
W3 + -3w + 3w + -7w2 = -21 + 3w

Combine like terms: -3w + 3w = 0
W3 + 0 + -7w2 = -21 + 3w
W3 + -7w2 = -21 + 3w

Add '7w2' to each side of the equation.
W3 + -7w2 + 7w2 = -21 + 3w + 7w2

Combine like terms: -7w2 + 7w2 = 0
W3 + 0 = -21 + 3w + 7w2
W3 = -21 + 3w + 7w2

Simplifying
W3 = -21 + 3w + 7w2

Reorder the terms:
21 + W3 + -3w + -7w2 = -21 + 3w + 7w2 + 21 + -3w + -7w2

Reorder the terms:
21 + W3 + -3w + -7w2 = -21 + 21 + 3w + -3w + 7w2 + -7w2

Combine like terms: -21 + 21 = 0
21 + W3 + -3w + -7w2 = 0 + 3w + -3w + 7w2 + -7w2
21 + W3 + -3w + -7w2 = 3w + -3w + 7w2 + -7w2

Combine like terms: 3w + -3w = 0
21 + W3 + -3w + -7w2 = 0 + 7w2 + -7w2
21 + W3 + -3w + -7w2 = 7w2 + -7w2

Combine like terms: 7w2 + -7w2 = 0
21 + W3 + -3w + -7w2 = 0

The solution to this equation could not be determined.

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