𝑔𝑖ả𝑖 𝑐á𝑐 𝑝ℎươ𝑛𝑔 𝑡𝑟ì𝑛ℎ 𝑠𝑎𝑢
1, 6
x+3−9
x+4+7
x+6=0
2,
x−6
2−25=0
3,
4x−5
2−9
4x+5
2=0
4
5x−6
2
3x+5
6−5x

5,
x
4
x
3
x
2+x+1=0
6
x
3
y
3
x+y
3+30xy=2000

7,x
4
x
3+2
x
2−x+1=0
8,
x
4−5
x
2−36
8−3x


x
2−9
x
2+4
2x+3


9,
x+3
3
x−1
3=56
10
x+1
4
x−3
4=82
11
x−1
5
x+3
5=242
x+1

12
4−x
5
x−2
5=32
13, x
x
2−1
x+2=24
14
x+2
x+3
x−5
x−6=180
15,2x
8x−1
2
4x−1=9
16
2x+1
x+1
2
2x+3=18
17
12x+7
2
3x+2
2x+1=3
18
x+1
3
x−2
3
2x−1
3

19
x−1
3
2x−3
2
3x−5

=3
x−1
2x−3
3x−5

20
x+9
x+10
x+11−8x=0
21
x
2+3x+2
x
2+7x+12=24
22
x
2−3
2+3
x−1=x
2x−1

23
2
x
2+3
3−10
x
3−15x=0
24
x
2−4x+11
x
4−8
x
2+21=35
25
x
2+3x+2
x
2+7x+12=2
x
2

26
x+2
x+3
x+8
x+12=4
x
2

27
10x+14
4
10
4
x+1
4=256
28
x
4−4
x
3−19
x
2+106x=120
29,4
x
3+21
x
2+21x+4=0
30,2
x
4−7
x
3+9
x
2−7x+2=0
31,
x
5+2
x
4+3
x
3+3
x
2+2x+1=0
32, 2
x
3
x
2+5x+3=0
33, 24
x
3−26
x
2+20x=20
x
2−9x+6

34,2
x
4−9
x
3+4
x
2−9x+2=0

35,6
4+25
x
3+12
x
2−25x+6=0
36,2
x
4−21
x
3+74
x
2−105x+50=0
37,6
x
4+7
x
3−36
x
2−7x+6=0
38,
x
2−x+1
x
2−2x+3+…
+
x
2−100x+199=0