lnx+ln(x+4)=ln(x^2+12)

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Solution for lnx+ln(x+4)=ln(x^2+12) equation:


Simplifying
lnx + ln(x + 4) = ln(x2 + 12)

Reorder the terms:
lnx + ln(4 + x) = ln(x2 + 12)
lnx + (4 * ln + x * ln) = ln(x2 + 12)
lnx + (4ln + lnx) = ln(x2 + 12)

Reorder the terms:
4ln + lnx + lnx = ln(x2 + 12)

Combine like terms: lnx + lnx = 2lnx
4ln + 2lnx = ln(x2 + 12)

Reorder the terms:
4ln + 2lnx = ln(12 + x2)
4ln + 2lnx = (12 * ln + x2 * ln)
4ln + 2lnx = (12ln + lnx2)

Solving
4ln + 2lnx = 12ln + lnx2

Solving for variable 'l'.

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

Add '-12ln' to each side of the equation.
4ln + -12ln + 2lnx = 12ln + -12ln + lnx2

Combine like terms: 4ln + -12ln = -8ln
-8ln + 2lnx = 12ln + -12ln + lnx2

Combine like terms: 12ln + -12ln = 0
-8ln + 2lnx = 0 + lnx2
-8ln + 2lnx = lnx2

Add '-1lnx2' to each side of the equation.
-8ln + 2lnx + -1lnx2 = lnx2 + -1lnx2

Combine like terms: lnx2 + -1lnx2 = 0
-8ln + 2lnx + -1lnx2 = 0

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(-8 + 2x + -1x2) = 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 '(-8 + 2x + -1x2)' equal to zero and attempt to solve: Simplifying -8 + 2x + -1x2 = 0 Solving -8 + 2x + -1x2 = 0 Move all terms containing l to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 2x + 8 + -1x2 = 0 + 8 Reorder the terms: -8 + 8 + 2x + -1x2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + 2x + -1x2 = 0 + 8 2x + -1x2 = 0 + 8 Combine like terms: 0 + 8 = 8 2x + -1x2 = 8 Add '-2x' to each side of the equation. 2x + -2x + -1x2 = 8 + -2x Combine like terms: 2x + -2x = 0 0 + -1x2 = 8 + -2x -1x2 = 8 + -2x Add 'x2' to each side of the equation. -1x2 + x2 = 8 + -2x + x2 Combine like terms: -1x2 + x2 = 0 0 = 8 + -2x + x2 Simplifying 0 = 8 + -2x + x2 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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