2х²-6+16>15х-3х²
2х²+3х²-15х+10>0
5х²-15х+10>0
у=5х²-15х+10
у=0
5х²-15х+10=0 |:5
х²-3х+2=0
D= b²-4ac = 9-8=1
x1 = -b+√D 3+1
---------- = ------ = 4/2= 2
2a 2
x2 = b-√D 3-1
--------- = ------ == 1
2a. 2
\\\\( 1. 2)////
-----(°------°)------>
--------
x¢(-бескон; 1) v (2; +бескон)