Bài 2: Phương trình bậc nhất một ẩn và cách giải
Các câu hỏi tương tự
1) (3x-2)/3-2=(4x+1)/4
2) (x-3)/4+(2x-1)/3=(2-x)/6
3) 1/2 (x+1)+1/4 (x+3)=3-1/3 (x+2)
4) (x+4)/5-x+4=x/3-(x-2)/2
5) (4-5x)/6=2(-x+1)/2
6) (-(x-3))/2-2=5(x+2)/4
7)2(2x+1)/5-(6+x)/3=(5-4x)/15
8) (7-3x)/2-(5+x)/5=1
9)(x-1)/2+3(x+1)/8=(11-5x)/3
10)(3+5x)/5-3=(9x-3)/4
Giai phuong trinh
1/2(x+1)+1/4(x+3)=3-1/3(x+2)
Giải các phương trình sau:
a) frac{4}{x-1}-frac{5}{x-2}-3
b) 3x-frac{1}{x-2}frac{x-1}{2-x}
c) frac{x+4}{x^2-3x+2}+frac{x+1}{x^2-4x+3}frac{2x+5}{x^2-4x+3}
d) frac{2}{x^2-4}-frac{1}{xleft(x-2right)}+frac{x-4}{xleft(x+2right)}0
e) frac{4x}{x^2+4x+3}-16left(frac{1}{x+3}-frac{1}{2x+2}right)
f) frac{3}{4left(x-5right)}+frac{15}{50-2x^2}frac{7}{6x+30}
g) frac{1}{x-1}+frac{2x^2-5}{x^3-1}frac{4}{x^2+x+1}
Đọc tiếp
Giải các phương trình sau:
a) \(\frac{4}{x-1}-\frac{5}{x-2}=-3\)
b) \(3x-\frac{1}{x-2}=\frac{x-1}{2-x}\)
c) \(\frac{x+4}{x^2-3x+2}+\frac{x+1}{x^2-4x+3}=\frac{2x+5}{x^2-4x+3}\)
d) \(\frac{2}{x^2-4}-\frac{1}{x\left(x-2\right)}+\frac{x-4}{x\left(x+2\right)}=0\)
e) \(\frac{4x}{x^2+4x+3}-1=6\left(\frac{1}{x+3}-\frac{1}{2x+2}\right)\)
f) \(\frac{3}{4\left(x-5\right)}+\frac{15}{50-2x^2}=\frac{7}{6x+30}\)
g) \(\frac{1}{x-1}+\frac{2x^2-5}{x^3-1}=\frac{4}{x^2+x+1}\)
Giải các phương trình sau:
a) frac{4}{x-1}-frac{5}{x-2}-3
b) 3x-frac{1}{x-2}frac{x-1}{2-x}
c) frac{x+4}{x^2-3x+2}+frac{x+1}{x^2-4x+3}frac{2x+5}{x^2-4x+3}
d) frac{2}{x^2-4}-frac{1}{xleft(x-2right)}+frac{x-4}{xleft(x+2right)}0
e) frac{4x}{x^2+4x+3}-16left(frac{1}{x+3}-frac{1}{2x-2}right)
f) frac{3}{4xleft(x-5right)}+frac{15}{50-2x^2}frac{7}{6x+30}
g) frac{1}{x-1}+frac{2x^2-5}{x^3-1}frac{4}{x^2+x+1}
Đọc tiếp
Giải các phương trình sau:
a) \(\frac{4}{x-1}-\frac{5}{x-2}=-3\)
b) \(3x-\frac{1}{x-2}=\frac{x-1}{2-x}\)
c) \(\frac{x+4}{x^2-3x+2}+\frac{x+1}{x^2-4x+3}=\frac{2x+5}{x^2-4x+3}\)
d) \(\frac{2}{x^2-4}-\frac{1}{x\left(x-2\right)}+\frac{x-4}{x\left(x+2\right)}=0\)
e) \(\frac{4x}{x^2+4x+3}-1=6\left(\frac{1}{x+3}-\frac{1}{2x-2}\right)\)
f) \(\frac{3}{4x\left(x-5\right)}+\frac{15}{50-2x^2}=\frac{7}{6x+30}\)
g) \(\frac{1}{x-1}+\frac{2x^2-5}{x^3-1}=\frac{4}{x^2+x+1}\)
a (2x-1)^3+6(3x-1)^2=2(x+1)^3+6(x+2)^3
b (x-2)^2+(3-2x)^2-(4x-4)(x-5)=(x+3)^2
c x-3+2(x-3)-1/3=3-x/4
ai giúp mik đc câu nào cũng đc ạ
Giải các phương trình sau:
a) frac{4}{x-1}-frac{5}{x-2}-3
b) frac{x+4}{x^2-3x+2}+frac{x+1}{x^2-4x+3}frac{2x+5}{x^2-4x+3}
c) 3x-frac{1}{x-2}frac{x-1}{2-x}
d) frac{2}{x^2-4}-frac{1}{xleft(x-2right)}+frac{x-4}{xleft(x+2right)}0
e) frac{4x}{x^2+4x+3}-16left(frac{1}{x+3}-frac{1}{2x+2}right)
Đọc tiếp
Giải các phương trình sau:
a) \(\frac{4}{x-1}-\frac{5}{x-2}=-3\)
b) \(\frac{x+4}{x^2-3x+2}+\frac{x+1}{x^2-4x+3}=\frac{2x+5}{x^2-4x+3}\)
c) \(3x-\frac{1}{x-2}=\frac{x-1}{2-x}\)
d) \(\frac{2}{x^2-4}-\frac{1}{x\left(x-2\right)}+\frac{x-4}{x\left(x+2\right)}=0\)
e) \(\frac{4x}{x^2+4x+3}-1=6\left(\frac{1}{x+3}-\frac{1}{2x+2}\right)\)
Giai cac phuong trinh sau: a) x+1/65 + x+2/64= x+3/63 + x+4/62
b) x-12/77 + x-11/78 = x-74/15 + x-73/16
c) (1/1.2 + 1/2.3 +...+ 1/9.10) (x-1) + 1/10x = x-9/10
d) (1/1.51 + 1/2.52 +...+ 1/10.60)x = (1/1.4 + 1/2.12 +...+ 1/50.60)
1) Giải pt bậc nhất 1 ẩn:
a) 1,2 - (x - 0,8)= -2(0,9+x)
b) 2,3x - 2( 0,7+2x)= 3,6 -1,7x
c) 5 - (x - 6)= 4(3 - 2x)
d) 3,6 - 0,5(2x+1)= x - 0,25(2 - 4x)
e) (x - 3) (x + 4) - 2(3x - 2)= (x - 4)\(^2\)
f
Giải các phương trình sau :
a) x^4-left(x^2+2right)4
b) frac{x+2}{x-2}-frac{1}{x}frac{2}{xleft(x-2right)}
c) frac{2x-10}{4}5+frac{2-3x}{6}
d) frac{2x}{left(x-3right)left(x+1right)}+frac{x}{2left(x-3right)}frac{x}{2x+2}
e) left(frac{x+2}{x}right)^2+left(frac{x}{x+2}right)^22
f) left(x-aright)left(x+aright)+2x+a^2-1
g) frac{x-a}{2a}+frac{x-2a}{3a}+frac{x-3a}{4a}+frac{x-4a}{5a}-4
h) left(x^2-3x+4right)^2left(x^2-2x+3right)left(x^2-4x+5right)
i) frac{x^2-4x+12}{x^2-4x+6}x^2-4x+8
Đọc tiếp
Giải các phương trình sau :
a) \(x^4-\left(x^2+2\right)=4\)
b) \(\frac{x+2}{x-2}-\frac{1}{x}=\frac{2}{x\left(x-2\right)}\)
c) \(\frac{2x-10}{4}=5+\frac{2-3x}{6}\)
d) \(\frac{2x}{\left(x-3\right)\left(x+1\right)}+\frac{x}{2\left(x-3\right)}=\frac{x}{2x+2}\)
e) \(\left(\frac{x+2}{x}\right)^2+\left(\frac{x}{x+2}\right)^2=2\)
f) \(\left(x-a\right)\left(x+a\right)+2x+a^2=-1\)
g) \(\frac{x-a}{2a}+\frac{x-2a}{3a}+\frac{x-3a}{4a}+\frac{x-4a}{5a}=-4\)
h) \(\left(x^2-3x+4\right)^2=\left(x^2-2x+3\right)\left(x^2-4x+5\right)\)
i) \(\frac{x^2-4x+12}{x^2-4x+6}=x^2-4x+8\)