What is the answer to (ln(x))^2-ln(x^3)-8=2 ?

The answer to (ln(x))^2-ln(x^3)-8=2 is x=e^5,x= 1/(e^2)

Solve for x: (ln(x))^2-ln(x^3)-8=2

The solution is x=e^5,x= 1/(e^2)

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(ln (x))^{2} - ln (x^{3}) - 8 = 2

x = e^{5}, x = \frac{1}{e ^{2}}

Solution steps

(ln (x))^{2} - ln (x^{3}) - 8 = 2

Apply log rules

(ln (x))^{2} - 3 ln (x) - 8 = 2

Rewrite the equation with

ln (x) = u

(u)^{2} - 3 u - 8 = 2

Solve

u^{2} - 3 u - 8 = 2 : u = 5, u = - 2

u = 5, u = - 2

Substitute back

u = ln (x),

solve for

x

Solve

ln (x) = 5 : x = e^{5}

Solve

ln (x) = - 2 : x = \frac{1}{e ^{2}}

x = e^{5}, x = \frac{1}{e ^{2}}

Verify Solutions:

x = e^{5}

True

, x = \frac{1}{e ^{2}}

True

The solutions are

x = e^{5}, x = \frac{1}{e ^{2}}

ln (ln (x)) = 4

ln (x) - ln (x - 1) = 1

ln (x) - ln (3) = 2

lo g_{5} (2 x - 4) = 2

- 4 + lo g_{3} (x + 1) = - 3

What is the answer to (ln(x))^2-ln(x^3)-8=2 ?
The answer to (ln(x))^2-ln(x^3)-8=2 is x=e^5,x= 1/(e^2)
Solve for x: (ln(x))^2-ln(x^3)-8=2
The solution is x=e^5,x= 1/(e^2)