Question

Log1/7(4x+1)<-2
помогитее

Answer 1

$log_frac{1}{7} (4x+1) textless -2, \ left { {{4x+1 textgreater 0,} atop {4x+1 textgreater (frac{1}{7})^{-2};}} right. \ 4x+1 textgreater 49, \ 4x textgreater 48, \ x textgreater 12$

Answer 2

а одз 4х+1 не надо ?

Answer 3

4x+1>49>0