Các câu hỏi tương tự
Tìm x:
1)(x-4)(x-5)(x-6)(x-7)=1680
2)(x+2)(x+3)(x-5)(x-6)=180
(x2+5x)2+10(x2-5x)+24=0
(x2+x+1)2=3(x4+x2+1)
(x-4)(x-5)(x-6)(x-7)=1680
(x+2)(x+3)(x-5)(x-6)=180
2x(8x-1)2(4x-1)=9
hộ em cái ạ !!!!
1) (4-3x) (10x-5)02) (7-2x) (4+8x) 03) (9-7x) (11-3x) 04) (7-14x) (x-2) 05) (2x+1) (x-3) 06) (8-3x) (-3x+5) 07) (16-8x) (2-6x) 08) (x+4) (6x-12) 09) (11-33x) (x+11) 010) (x-1/4) (x+5/6) 011) (7/8-2x) (3x+1/3) 012) 3x - 2x^2 013) 5x + 10x^2 014) 4x + 3x^2 015) -8x^2 + x 016) 10x^2 - 15x 017) x^2 -4 018) 9 - x^2 019) x^2 -1 020) (x-3) (2x-1) (2x-1) ( 2x+3)21) (5+4x) (-x+2) (5+4x) (7+5x)22) (4+x) (x-5) (3x-8) (x-5) 0 23) (3x-8) (7-21x) - (9+2x) (7-21x)24) (10+ 7x) (x+1) (9x-2)(...
Đọc tiếp
1) (4-3x) (10x-5)=0
2) (7-2x) (4+8x) = 0
3) (9-7x) (11-3x) = 0
4) (7-14x) (x-2) = 0
5) (2x+1) (x-3) = 0
6) (8-3x) (-3x+5) = 0
7) (16-8x) (2-6x) = 0
8) (x+4) (6x-12) = 0
9) (11-33x) (x+11) = 0
10) (x-1/4) (x+5/6) = 0
11) (7/8-2x) (3x+1/3) = 0
12) 3x - 2x^2 = 0
13) 5x + 10x^2 = 0
14) 4x + 3x^2 = 0
15) -8x^2 + x =0
16) 10x^2 - 15x = 0
17) x^2 -4 =0
18) 9 - x^2 = 0
19) x^2 -1 = 0
20) (x-3) (2x-1) = (2x-1) ( 2x+3)
21) (5+4x) (-x+2) = (5+4x) (7+5x)
22) (4+x) (x-5) = (3x-8) (x-5) = 0
23) (3x-8) (7-21x) - (9+2x) (7-21x)
24) (10+ 7x) (x+1) = (9x-2)(x-1)
25) (9x-4) (x-1/2) - (x-1/2) (6+x) = 0
26) 9x^2 - 1 = (3x-1) (x+4)
27) (x+7) (3x+1) = 49-x^2
28) (2x+1)^2 = (x-1)^2
29)x^3- 5x^2+6x = 0
30) 3x^2 + 5x + 2 = 0
Giảii giúpp mìnhh đyy mọii ngườii .
(x-4)×(x-5)×(x-6)×(x-7)=1680
(x-4)(x-5)(x-6)(x-7)-1680
(x-4).(x-5).(x-6).(x-7)=1680
1. Giải các phương trình:a) (x²+x+1)(x²+x+2)12b) (x²+x+6)(x²+x+3)6c) (x²+5x)²-2(x²+5x)-240d) (x²-4x)²+2(x²-4x)-80e) (2-x²)²+3(2-x²)+20f) (x²-6x)²-2(x-3)²81g) (x²+2x)²-(x+1)²55h) x(x+1)(x-1)(x+2)24i) (x-4)(x-5)(x-6)(x-7)1680j) (x+1)(x+2)(x+5)(x-2)-20k) (x+1)(x+2)(x+3)(x+4)3l) (x-2)(x-4)(x+6)(x+8)-36m) (x-1)(x-3)(x+5)(x+7)297n) (x+1)(x+3)(x+5)(x+7)9o) (8x+7)²(4x+3)(x+1)4,5
Đọc tiếp
1. Giải các phương trình:
a) (x²+x+1)(x²+x+2)=12
b) (x²+x+6)(x²+x+3)=6
c) (x²+5x)²-2(x²+5x)-24=0
d) (x²-4x)²+2(x²-4x)-8=0
e) (2-x²)²+3(2-x²)+2=0
f) (x²-6x)²-2(x-3)²=81
g) (x²+2x)²-(x+1)²=55
h) x(x+1)(x-1)(x+2)=24
i) (x-4)(x-5)(x-6)(x-7)=1680
j) (x+1)(x+2)(x+5)(x-2)=-20
k) (x+1)(x+2)(x+3)(x+4)=3
l) (x-2)(x-4)(x+6)(x+8)=-36
m) (x-1)(x-3)(x+5)(x+7)=297
n) (x+1)(x+3)(x+5)(x+7)=9
o) (8x+7)²(4x+3)(x+1)=4,5
Giải các phương trình:
a, \(x^3+2x^2+2x+1=0\)
b, \(\left(x-4\right)\left(x-5\right)\left(x-6\right)\left(x-7\right)=1680\)
Giải phương trình:(x - 4)(x - 5)(x - 6)(x - 7) = 1680