If 3^x+2^ 2 x 5^x , then the solution set for x is

Step-by-step solution

We have, 3^x+2^ 2 x 5^x aligned & 3^x+ (2^2 )^x 5^x ; 3^x+4^x 5^x & ( 3 5 )^x+ ( 4 5 )^x 1 aligned ( )^x+( )^x 1 [by triangle inequality] x 2 Solution set is (- , 2]