Các câu hỏi tương tự
Tìm x,biết
a) ( x+2)×(x+3)-(x -2)×(x+5)=0
b) (2x+3)×(x-4)+(x-5)×(x-2)=(3x-5)×(x-4)
c) (8-5x)×(x+2)+4(x-2)×(x+1)+2(x-2)×(x+2)=0
d) (8x-3)×(3x+2)-(4x+7)×(x+4)=(2x+1)×(5x-1)-33
Bài 2: Tìm x, biết: a) (x + 2)^2 – 2(x + 2)(x – 5) = 0. b) 2x^2 + 3x – 5 = 0. c) x + 2 ^2 x 2 + 2x^3 = 0. d) (3x-1)^2-4(x+5)^2=0
Tìm x biết
a) x(x-5)(x+5)-(x-2)(x^2+2x+4)=3
b) 25x^2-2=0
c) (x+2)^2=(2x-1)^2
d) (x+2)^2-x^2+4=0
e) (x^2-2)^2+4(x-1)^2-4(x^2-2)(x-1)=0
Tìm x, biết:a) 3x(x - 1) + x - 1 0;b) (x - 2)(
x
2
+ 2x + 7) + 2(
x
2
- 4) - 5(x - 2) 0;c)
(
2
x
-
1
)
2
- 25 0;d)
x
3
+ 27 + (x + 3)(x - 9) 0.
Đọc tiếp
Tìm x, biết:
a) 3x(x - 1) + x - 1 = 0;
b) (x - 2)( x 2 + 2x + 7) + 2( x 2 - 4) - 5(x - 2) = 0;
c) ( 2 x - 1 ) 2 - 25 = 0;
d) x 3 + 27 + (x + 3)(x - 9) = 0.
a,x+5/x-1+8/x^2-4x+3=x+1/x-3 b,x-4/x-1-x^2+3/1-x^2+5/x+1=0 c,3x/4-5=3-x/2+5x-1/6 d,(x-2)(x+2)-(x-3)(x+4)-2x+3=0 e,(x-1)^2+2(x+1)=5x+5 g,(x-3)(x+4)x=0
Tìm x biết:
a) 5.(x+7) - 12x =15
b) x^2 - 25 - (x+5) =0
c) (2x -1)^2 - (4x^2 - 1) =0
d) x^2 .(x^2 + 4) - x^2 - 4 =0
( lưu ý: ^2 có nghĩa là mũ 2)
Tìm x
a.(x+2).(x+3)-(x-2).(x+5) = 0
b. (2x+3).(x-4)+(x-5)(x+2) = (3x-5)(x-4)
c. (3x+2)(2x+9)-(x+2)(6x+1) = x+1-(x-6)
d. 3( 2x-1).(3x-1)-(2x-3).(9x-1)=0
Tìm x:
a, (2x+3)(x-4)+(x-5)(x-2)=(3x-5)(x-4)
b, 2x2+3(x-1)(x+1)=5x(x+1)
c, (8-5x)(x+2)+4(x-2)(x+1)+2(x-2)(x+2)=0
d, 4(x-1)(x+5)-(x+2)(x+5)=3(x-1)(x+2)
tìm x,biết :
a, ( x + 2 )2 - 9 = 0
b, x2 - 2x + 1 = 25
c, ( 5x + 1 )2 5 (5x -3 ) =30
d, ( x-1 ) (x2 - x + 1 ) - x (x + 2 ) ( 2 - x ) =5
e, 5x (x - 3 )2 - 5 ( x - 1 ) + 15 ( x + 4 ) ( x - 4 ) = 5
tìm x biết:
a, 49x^2 -4=0
b, (x+3)^2 - (x+2)(x-2)=11
c,(2x +1)^2 - (x-3)^2 - 3(x+5)(x-5) =5
d, (3x +1)(3x-1)=8
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