2010010103 | math4u.vsb.cz

SubArea:

Logarithmic equations and inequalities

Level:

Project ID:

2010010103

Source Problem:

Accepted:

0

Clonable:

1

Easy:

0

Solve

\frac{\log (x^{2} + 7)}{\log (x + 7)} = \frac{\log 25}{\log 5} .

x = - 3

x = - 5

x_{1} = 3; x_{2} = - 3

x = - 2