ln(x^2+8)=ln(9x)

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Solution for ln(x^2+8)=ln(9x) equation:


Simplifying
ln(x2 + 8) = ln(9x)

Reorder the terms:
ln(8 + x2) = ln(9x)
(8 * ln + x2 * ln) = ln(9x)
(8ln + lnx2) = ln(9x)

Remove parenthesis around (9x)
8ln + lnx2 = ln * 9x

Reorder the terms for easier multiplication:
8ln + lnx2 = 9ln * x

Multiply ln * x
8ln + lnx2 = 9lnx

Solving
8ln + lnx2 = 9lnx

Solving for variable 'l'.

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

Add '-9lnx' to each side of the equation.
8ln + -9lnx + lnx2 = 9lnx + -9lnx

Combine like terms: 9lnx + -9lnx = 0
8ln + -9lnx + lnx2 = 0

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(8 + -9x + x2) = 0

Factor a trinomial.
ln((1 + -1x)(8 + -1x)) = 0

Subproblem 1

Set the factor 'ln' equal to zero and attempt to solve: Simplifying ln = 0 Solving ln = 0 Move all terms containing l to the left, all other terms to the right. Simplifying ln = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing l to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Add 'x' to each side of the equation. -1x + x = -1 + x Combine like terms: -1x + x = 0 0 = -1 + x Simplifying 0 = -1 + x The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 3

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing l to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Add 'x' to each side of the equation. -1x + x = -8 + x Combine like terms: -1x + x = 0 0 = -8 + x Simplifying 0 = -8 + x The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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