( 3х – 2 (х – 7) < 3(x +1),(х – 5)(х + 5) = (х – 3)2 + 2.​

Question

( 3х – 2 (х – 7) < 3(x +1),(х – 5)(х + 5) = (х – 3)2 + 2.​

Answer 1

1)3х-2х+14<3х+3</p>

3х-3х-2х<-14+3</p>

-2х<-11</p>

х>5,5

х∈(5,5;+∞)

2) х²-25=2х-6+2

х²-2х-21=0

х₁,₂=1±√(1+21)=1±√22