`e)(x+2)(x+3)=5-x+x(x-1)-2`
`<=>x^2+3x+2x+6=5-x+x^2-x-2`
`<=>7x=-3`
`<=>x=-3/7`
`f)(2x-3)(3-x)+(x-1)^2=1-(x+3)(x-3)`
`<=>6x-2x^2-9+3x+x^2-2x+1=1-x^2+9`
`<=>7x=17`
`<=>x=17/7`
`j)3(x+1)(x-1)=3(x^2+2x)+1`
`<=>3x^2-3=3x^2+6x+1`
`<=>6x=-4`
`<=>x=-2/3`
`e)(x+2)(x+3)=5-x+x(x-1)-2`
`<=>x^2+3x+2x+6=5-x+x^2-x-2`
`<=>7x=-3`
`<=>x=-3/7`
`f)(2x-3)(3-x)+(x-1)^2=1-(x+3)(x-3)`
`<=>6x-2x^2-9+3x+x^2-2x+1=1-x^2+9`
`<=>7x=17`
`<=>x=17/7`
`j)3(x+1)(x-1)=3(x^2+2x)+1`
`<=>3x^2-3=3x^2+6x+1`
`<=>6x=-4`
`<=>x=-2/3`
Giải các phương trình sau bằng cách đưa về dạng ax + b = 0 :
1. a) 5 - (x - 6) = 4(3 - 2x)
b) 2x(x + 2)^2 - 8x^2 = 2(x - 2)( x^2 + 2x + 4)
c) 7 - (2x + 4) = - (x + 4)
d) (x - 2)^3 + (3x - 1)(3x + 1) = (x + 1)^3
e) (x + 1)(2x - 3) = (2x - 1)(x + 5)
f) (x - 1)^3 - x(x + 1)^2 = 5x(2 - x ) - 11(x +2)
g) (x-1) - (2x - 1 ) = 9 - x
h) (x-3)(x+4) - 2(3x - 2) = (x-4)^2
i) x(x+3)^2 - 3x = (x + 2)^3 + 1
j) (x + 1)(x^2 - x + 1) - 2x = x(x + 1)(x-1)
giải các Phương trình sau
a) x/2+x/3=1/4-x5
b) ( x+1)^2-5=x^2+11
c) 3.(3x-1)=3x+5
d) 3x.(2x-3)-3.(3+2x^2)=0
e) (3x-1)^2-3.(3x-2)=9.(x+1).(x-3)
f) (x-1)^2-x.(x+1)+3.(x-2)+5=0
Giải phương trình sau
C x-2/c+2+3/x-2=x^2-11/x^2-4
D 2/x+1-1/x-2=3x-11/(x+1)(x-2)
E x+3/x-2-1/x=2/x^2+2x
F x+2/x-2-1/x=2/x(x-2)
G 3x-1/x-1-2x+5/x-3=1
H 2x/2x-1+x/2x+1=1+4/(2x-1)(2x+1)
giải phương trình
a)5-(x-6)=4(3-2x)
b)2x(x+2)2-8x2=2(x-2)(x2+2x+4)
c)7-(2x+4)=-(x+4)
d)(x-2)3+(3x-1)(3x+1)=(x+1)3
e)(x+1)(2x-3) = (2x-1)(x+5)
f)(x-1)3-x(x+1)2 = 5x(2-x)-11(x+2)
Giải phương trình:
A) 1-x/x+1 +3 = 2x+3/x+1
B) (x+2)^2/2x-3 -1 = x^2-10/2x-3
C) 5x-2/2-2x + 2x-1/2 = 1 + x^2+x-3/x-1
D) 5-2x/3 - (x-1)(x+1)/1-3x = (x+2)(1-3x)/9x-3
E) x-3/x-2 + x-2/x-4 = -1
F) 1 + x/3-x = 5/(x+2)(3-x) + 2/x+2
G) x+1/x-1 - x-1/x+1 = 3x( 1 - x-1/x+1 )
H) 1-6x/x-2 + 9x-4/x+2 = x(3x-2)+1/x^2-4
I) 3x-1/x-1 - 2x+5/x+3 + 4/x^2+2x-3 = 1
Giải các phương trình và bất phương trình sau
a) 2x + 5 = 2 - x
b) | x-7| = 2x + 3
c) 4/x+2 - 4x-6/4x-x3 = x-3/x(x-2)
d) 1-2x/4 - 1 < 1-5x/8
e) 3 - 5x/10 = 1+ x+1/3
f) 1-2x/4 - 2 < 1-5x/8
Giải các phương trình sau
d) \(\dfrac{1}{x-2}\)-\(\dfrac{6}{x+3}\)=\(\dfrac{5}{6-x^2-x}\)
e) \(\dfrac{2}{x+2}\)-\(\dfrac{2x^2+16}{x^3+8}\)=\(\dfrac{5}{x^2-2x+4}\)
f) \(\dfrac{x+1}{x^2+x+1}\)-\(\dfrac{x-1}{x^2-x+1}\)=\(\dfrac{2\left(x+2\right)^2}{x^6-1}\)
giải phương trình:
a, 1+2x-5/6=3-x/4
b, x+3/x+1+x-2/x=2
c, x-2/x+2+3/x-2=x^2-11/x^2-4
d,2/x+1-1/x-2=3x-11/x+1*x-2
e,x+2/x-2-1/x=2/x^2-2x
f, x+2/x-2-1/x=2/x*(x-2)
g,3x-1/x-1=2x+5/x-3
h,2x/2x-1+x/2x+1=1+4/2x-1*2x+1
mình cần bài này gấp ạ
Giải các phương trình sau :
a) (x-2)^3 + (3x-1)(3x+1) = (x+1)^3
b) (x+1)(2x-3) = (2x-1)(x+5)
c) (x-1)^3 - x(x+1)^2 = 5x(2-x) - 11(x+2)
d) (x-3)(x+4) - 2(3x-2) = (x-4)^2
e) x(x+3)^2 - 3x = (x+2)^3 + 1
f) (x+1)(x^2 - x + 1) - 2x = x(x+1)(x-1)
Mọi người giúp mình với ạ!