ln(x^2-10)=ln(x+2)

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Solution for ln(x^2-10)=ln(x+2) equation:


Simplifying
ln(x2 + -10) = ln(x + 2)

Reorder the terms:
ln(-10 + x2) = ln(x + 2)
(-10 * ln + x2 * ln) = ln(x + 2)
(-10ln + lnx2) = ln(x + 2)

Reorder the terms:
-10ln + lnx2 = ln(2 + x)
-10ln + lnx2 = (2 * ln + x * ln)
-10ln + lnx2 = (2ln + lnx)

Solving
-10ln + lnx2 = 2ln + lnx

Solving for variable 'l'.

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

Add '-2ln' to each side of the equation.
-10ln + -2ln + lnx2 = 2ln + -2ln + lnx

Combine like terms: -10ln + -2ln = -12ln
-12ln + lnx2 = 2ln + -2ln + lnx

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

Add '-1lnx' to each side of the equation.
-12ln + -1lnx + lnx2 = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-12ln + -1lnx + lnx2 = 0

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(-12 + -1x + x2) = 0

Factor a trinomial.
ln((-3 + -1x)(4 + -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 '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing l 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 Add 'x' to each side of the equation. -1x + x = 3 + x Combine like terms: -1x + x = 0 0 = 3 + x Simplifying 0 = 3 + 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 '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing l to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Add 'x' to each side of the equation. -1x + x = -4 + x Combine like terms: -1x + x = 0 0 = -4 + x Simplifying 0 = -4 + 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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