1/2=30, 1/3=20, 1/4=15
Как-то так
23400 = 2 * 2 * 2 * 3 * 3 * 5 * 5 * 13 = 2³ * 3² * 5² * 13
4400 = 2 * 2 * 2 * 2 * 5 * 5 * 11 = 2⁴ * 5² * 11
3 2/5:2 1/10=17/5*10/21=34/21=1 13/21
5 3/14-1 13/21=5 9/42-1 26/42=4 51/42-1 26/42=3 25/42
х=3 25/42
Ln(4x-3)=2lnx
ln(4x-3)=lnx²
ОДЗ:
4x-3>0 4x>3 x>3/4
x²>0 x>0
x<0
x∈(3/4;+∞)
4x-3=x²
x²-4x+3=0
D=(-4)²-4*3=16-12=4
x=(4-2)/2=1 x=(4+2)/2=3