x^3+4x^2=x^3-2x^2-17x-5

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Solution for x^3+4x^2=x^3-2x^2-17x-5 equation:


Simplifying
x3 + 4x2 = x3 + -2x2 + -17x + -5

Reorder the terms:
4x2 + x3 = x3 + -2x2 + -17x + -5

Reorder the terms:
4x2 + x3 = -5 + -17x + -2x2 + x3

Add '-1x3' to each side of the equation.
4x2 + x3 + -1x3 = -5 + -17x + -2x2 + x3 + -1x3

Combine like terms: x3 + -1x3 = 0
4x2 + 0 = -5 + -17x + -2x2 + x3 + -1x3
4x2 = -5 + -17x + -2x2 + x3 + -1x3

Combine like terms: x3 + -1x3 = 0
4x2 = -5 + -17x + -2x2 + 0
4x2 = -5 + -17x + -2x2

Solving
4x2 = -5 + -17x + -2x2

Solving for variable 'x'.

Reorder the terms:
5 + 17x + 4x2 + 2x2 = -5 + -17x + -2x2 + 5 + 17x + 2x2

Combine like terms: 4x2 + 2x2 = 6x2
5 + 17x + 6x2 = -5 + -17x + -2x2 + 5 + 17x + 2x2

Reorder the terms:
5 + 17x + 6x2 = -5 + 5 + -17x + 17x + -2x2 + 2x2

Combine like terms: -5 + 5 = 0
5 + 17x + 6x2 = 0 + -17x + 17x + -2x2 + 2x2
5 + 17x + 6x2 = -17x + 17x + -2x2 + 2x2

Combine like terms: -17x + 17x = 0
5 + 17x + 6x2 = 0 + -2x2 + 2x2
5 + 17x + 6x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
5 + 17x + 6x2 = 0

Factor a trinomial.
(5 + 2x)(1 + 3x) = 0

Subproblem 1

Set the factor '(5 + 2x)' equal to zero and attempt to solve: Simplifying 5 + 2x = 0 Solving 5 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2x = 0 + -5 2x = 0 + -5 Combine like terms: 0 + -5 = -5 2x = -5 Divide each side by '2'. x = -2.5 Simplifying x = -2.5

Subproblem 2

Set the factor '(1 + 3x)' equal to zero and attempt to solve: Simplifying 1 + 3x = 0 Solving 1 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 0 + -1 3x = 0 + -1 Combine like terms: 0 + -1 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333

Solution

x = {-2.5, -0.3333333333}

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