3(2х+8)+2(х-8)-8(х+1)=0
6х+24+2х-16-8х-8=0
6х+2х-8х+24-16-8=0
0=0
(3/4)ⁿ>1 при n∈(-∞;0)
(3/4)ⁿ<1 при n∈(0; +∞)
(3/4)ⁿ=1 при n=0;
1) (2+√x)/(4-x)=(2-√x)⁻¹
2) 20/√5=4√5
3) 5/(√11-√6)=√11+√6
<span>у= -150/х</span>
<span>x=-15/8</span>
<span>y=-150/(-15/8)=150*8/15=80</span>
<span><span>D(-15/8 ; 80)</span></span>