Rozdział 2 - NIERÓWNOŚCI KWADRATOWE
Lp. |
Nierówność |
Postać uproszczona |
WYNIK |
1 |
|
2x2-3x-2>0 |
Z= |
2 |
(2x+3)2<1 |
x2+3x+2<0 |
Z=(-2,-1) |
3 |
( |
x2+4x-60>0 |
Z=(- |
4 |
(3x-1)2-4(2-x)2>0 |
x2+2x-3>0 |
Z=(- |
5 |
(1-3x)2+3x-4x2 |
5x2-3x-8 |
Z=(- |
6 |
(3x-2)2-x2-2x |
8x2-14x+3 |
Z= |
7 |
2x2+9>(x-4)2+14x |
x2-6x-7>0 |
Z= |
8 |
|
|
Z= |
9 |
(x-1)2-4>0 |
(x-3)(x+1)>0 |
Z= |
10 |
(2x+3)2-1<0 |
(x+1)(x+2)<0 |
Z=(-2,-1) |
11 |
5(x+1)<x(3-x) |
x2+2x+5<0 |
Z=Ř |
12 |
x2-x |
2x2-3x-2 |
Z= |
13 |
x(x-2)>3(x-2) |
x2-5x+6>0 |
Z= |
14 |
(3x+2)2 |
9x2-9x-10 |
Z= |
15 |
(x-4)2+(x-4)(x+2)>0 |
x2-5x+4>0 |
Z= |
16 |
(x-3)2>(x-3)(2x+9) |
-x2-9x+36>0 |
Z=(-12,3) |
17 |
|
x1=-1; x2=3 |
Z= |
18 |
-5(x-2)(1-x) |
x1=2; x2=1 |
Z= |
19 |
x2-7 |
|
Z= |
20 |
x2-3 |
|
Z= |
21 |
x2-2x-5 |
|
Z= |
22 |
x2-4x+ |
|
Z= |
23 |
|
|
Z= |
24 |
|
|
Z= |
25 |
-2x2+(x-1)2 |
-x2-2x+3 |
Z= |
26 |
-x2- |
|
Z=(-1,1) |
27 |
x2-3 |
|
Z= |
28 |
x2- |
|
Z= |
29 |
x2- |
|
Z=( |
30 |
|
|
Z=(-2, |
31 |
|
x2+9>0 |
Z=R |
32 |
x-8<3x<15+x-x2 |
|
Z=(-4,3) |
33 |
2<x2-x<x2+2x |
|
Z= |
34 |
x2-11<5x+3<7+9x |
|
Z=(-1,7) |
35 |
x2+2x-8 |
x(x-1) |
Z= |
36 |
-x2+6x-6 |
-x2+3x-3 |
Z=R |
37 |
2x2+19>8x+8 |
2x2-8x+11>0; ∆= -24 |
Z=R |
38 |
4x-8 |
x2-x-6 |
Z= |
39 |
x2+6x+9 |
(x+3)2 |
Z={-3} |