a) 11+ 8x-3=5x-3x+x
b) 3-4y+24+6y-y+27-3y
c) 8x-3-9x+12
d) x+2x+3x-19-9x+3
e) 4-2x+15-9x+4-2x
bài 2
a,2x(x + 2)2 – 8x2 = 2(x – 2)(x2 + 2x + 4)
b,(x – 2)3 + (3x – 1)(3x + 1) = (x + 1)3
c, (x + 1)(2x – 3) = (2x – 1)(x + 5)
d, (x – 1)3 – x(x + 1)2 = 5x(2 – x) – 11(x + 2)
MN giải giúp mik nhé mik đag càn gấp thanks
Bài 3:Giải các phương trình sau bằng cách đưa về dạng ax+b=0
1.
a,3x-2=2x-3
b,3-4y+24+6y=y+27+3y
c,7-2x=22-3x
d,8x-3=5x+12
e,x-12+4x=25+2x-1
f,x+2x+3x-19=3x+5
g,11+8x-3=5x-3+x
h,4-2x+15=9x+4-2x
MN giups mik nha
a) 7-2x=22-9x
b) x-12+4x=25+2x-1
c) 11+8x-3-5x-3x+x
d) 3-4y+24+6y-y+27-3y
e)8x-3-9x+12
f) x+2x+3x-19-9x+3x
g) 4-2x+15-9x+4-2x
giải các pt sau và đưa về dạng ax+b=0
a, 3x - 2 = 2x-3
b, 3- 4y +24 +6y = y +27 +3y
c, 7 - 2x = 22- 3x
d, 8x - 3 = 5x + 12
e,x - 12 + 4x = 25 + 2x - 1
f, x + 2x + 3x - 19 = 3x + 5
g, 11 = 8x - 3 = 5x - 3 + x
h, 4 - 2x + 15 = 9x + 4x - 2x
help
các bạn giúp mik bài này vs
5) (4x-5).(x+2)-(x+5).(x-3)-3x^2-x
6) (x-3).(x+7)-(2x-1).(x+2)+x.(x-1)
7) (7x-3).(2x+1)-(5x-2).(x+4)-9x^2+17x
8) -2.(x-7).(x+3)+(5x-1).(x+4)-3x^2-27x
9) (6x-5).(x+8)-(3x-1).(2x+3)-9.(4x-3)
10) (8x-1).(x+7)-(x-2).(8x+5)-11.(6x+1).
Tìm x biết
a) (x+2).(x+3) - (x-2).(x+5)=10
b) (3x+2). (2x+9) - (x+2). (8x+11)=(x+1).(3-2x)
c) 3.(2x-1).(3x-1)-(2x-3).(9x-1)=0
d) (5x-8).(4x-5)-(3x-4).(2x+12)=12
AI GIẢI GIÚP MÌNH VỚI !
Tìm x nha:
\(1+\frac{x+1}{3}=\frac{2x-1}{6}-2\)
Chứng minh rằng các pt sau vô nghiệm:
a) 2(x + 1) = 3 + 2x
b) 2(1–1,5x) + 3x = 0
c) | x | =–1
d) x2+ 1 = 0
Baøi 10.
Giải các phương trình sau:
a)3x–2 = 2x–3
b) 3–4y + 24 + 6y =y + 27 + 3y
c) 7–2x = 22–3x
d) 8x–3 = 5x + 12
e) x–12 + 4x = 25 + 2x–1
f) x + 2x + 3x–19 = 3x + 5
g) 11 + 8x–3 = 5x–3 + x
h) 4–2x + 15 = 9x + 4–2x
1. Rút Gọn
a) -5x (x-3).(2x+4)-(x+3)(x-3)+(5x-2)(3x+4)
b) (4x-1)x(3x+1)-5x^2x(x-3)-(x-4)x(x-5)-7(x^3-2x^2+x-1)
c) (5x-7)(x-9)-(3-x)(2-5x)-2x(x-4)
d)(5x-4)(x+5)-(x+1)(x^2-6)-5x+19
e)(9x^2-5)(x-3)-3x^2(3x+9)-(x-5)(x+4)-9x^3
g) (x-1)^2 - (x+2)^2
Thanks mn nhiều ạ
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 .
1.giải phương trình :
1)1 + 2/x-1 + 1/x+3=x^2+2x-7/x^2+2x-3
2)x/x^2+5x+6=2/x^2+3x+2 (x=3)
3)1/x^2+9x+20 - 1/x^2+8x+12=x^2-2x-33/x^2+8x+15 (x=-5,7)
4)x+5/3x-6 - 1/2=2x-3/2x-4 (x=25/7)
5)x-1/x^3+1 + 2x+3/x^2-x+1=2x+4/x+1 - 2(x=0)
