Ответы и объяснения

2013-12-23T16:34:42+04:00
log5(4x+1) = 2-log5(2x+3)
log5(4x+1)+log5(2x+3) = 2
log 5 (4x+1/2x+3) = 2
5
² = 4x+1/2x+3
25*(2x+3) = 4x+1
50x+75 = 4x+1 
46x = -74
x =  -74/46