Ответы и объяснения

2012-11-14T08:02:01+00:00

2^(3x+2)-2^(2x-2)=30;

2^(3 x+4) = 4^x+120;

2^(3 x+4)-2^(2 x) = 120;

x = (log(1/48 (1+(414721-288 sqrt(2073610))^(1/3)+(414721+288 sqrt(2073610))^(1/3))))/(log(2));

x~~0.9844