7x^3+14x^2=105x

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Solution for 7x^3+14x^2=105x equation:


Simplifying
7x3 + 14x2 = 105x

Reorder the terms:
14x2 + 7x3 = 105x

Solving
14x2 + 7x3 = 105x

Solving for variable 'x'.

Reorder the terms:
-105x + 14x2 + 7x3 = 105x + -105x

Combine like terms: 105x + -105x = 0
-105x + 14x2 + 7x3 = 0

Factor out the Greatest Common Factor (GCF), '7x'.
7x(-15 + 2x + x2) = 0

Factor a trinomial.
7x((-5 + -1x)(3 + -1x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 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 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 3

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

Solution

x = {0, -5, 3}

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