Пж помгите 37.7

1) 4/х - 1/2х-6= 4(2х-6)-х/х×(2х-6) = 7х-24/2х²-6х

2) 2х+3/х(х+1)+4/3х = 3(2х+3)+4(х+1)/3х(х+1) = 10х+13/3х²+3х

3) 5х+71/х+5 = 5х+71/х+5 = 5х(х+5)+71/х+5 = 5х²+25х+71/х+5