hello pls someone help me
f(x)=lg(2-7x)
Hello mongoloco!
Are you looking for the zero point ?!
\(f(x)=lg(2-7x)=0\) | de-logaritmize
\(2-7x=10^0\) | \(\mathbb R^0\in \{1\}\)
\(2-7x=1\) | -2
\(-7x=1-2\) | \(\times (-1)\)
\(7x=1\) | / 7
\(x=\dfrac{1}{7}\)
greeting
!
