Question
2. Solve for x in log (2 x+4)-4 operatorname(oy)(x-1) =3 log 2 (3mks)
Solution
3.9
(266 Votos)
Julia
Veterano · Tutor por 10 anos
Resposta
To solve for
in the equation \( \log (2x+4) - 4 \log (x-1) = 3 \log 2 \), we can follow these steps:1. Combine the logarithmic terms on the left side of the equation:
2. Use the properties of logarithms to simplify the equation:
3. Rewrite the equation in exponential form:
4. Simplify the equation:
5. Cross-multiply to get rid of the fraction:
6. Expand and simplify the equation:
7. Move all terms to one side of the equation:
8. Divide the entire equation by 2 to simplify:
9. Solve the quadratic equation using a suitable method, such as factoring, completing the square, or using the quadratic formula.After solving the quadratic equation, we can find the values of
that satisfy the original equation.