Question

4- 49х в степени 2/х-5 > 0 решите неравенство

Answer 1

(4-49x^2) / (x-5)>0

 

(4-49x^2)*(x-5)>0

 

(2-7x)*(2+7x)*(x-5)>0

 

x= 2/7   или x = -2/7  либо x=5

 

 

         +                                 -                                 +                         -

=========== (-2/7) ----------------( 2/7) =========== (5) -----------> x

 

 

x∈ (-∞; -2/7) ∨ (2/7; 5)