Các câu hỏi tương tự
a. __x__ + __6__ = __2x+12__
x+2 x+2 x2 -4
b. __x2__ - __1__ = x
x-1 2
c. __2x-1__ - __2x+5__ = ____4____
x-1 x+3 (x-1)(x+3)
(x/x^2-25 -x-5/x^2+5x) : (2x-5/x^2+5x +x/5-x)
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
tìm x biết
a) 5x(2x-7)+2x(8-5x)=5
b)(3x-5)(7-5x)-(5x+2)(2-3x)=4
c)5(2x-3)^2-5(x+1)^2-15(x+4)(x-4)=-10
d) 5x(x-3)(x+3)-(2x-3)^2 -5(x+2)^3+34x(x+2)=1
tìm x ,biết
a, x^2 -4x =12
b, ( 5x+1)^2 - (5x -3)(5x+3)=30
c, (x-1) ( x^2 +x +1 ) + x(x +2) (2-x)=5
d, 5x(x-3)^2 -5 (x-1)^3 +15 (x+4) (x-4) =5
Tìm x
1) (5x-7)(x-9)-(-x+3)(-5x+2)=2x(x-4)-(x-1)(2x+3)
2) (x-3)(-2x+5)-2x(x-4)+(4x-5)(x-3)=(x-2)(x-1)-(x^2-5x)
Các bạn giúp mình nhé càng nhanh càng tốt nhà(5x-1). (2x+3)-3. (3x-1)0x^3 (2x-3)-x^2 (4x^2-6x+2)0x (x-1)-x^2+2x5(3x+2)(x-1)-3 (5x+2)+5 (11-4x)258 (x-2)-2 (3x-4)25(3x+4). (5x-1)+(5x+2). (1-3x)+20(5x-1). (2x+7)-(2x-3). (5x+9)4 (x-1). (X+5)-(x+5). (X+2)3. (X-1)(x+2)2x^2+3 (x-1). (X+1)5x(x+1)4. (18-5x)-12 (3x-7)1825. (2x-16)-6 .(x+4)1/2x. (2/5-4x)+(2x+5).x-13/2 Nhiều các bạn giả đùm mình nhaThanh nhiều
Đọc tiếp
Các bạn giúp mình nhé càng nhanh càng tốt nhà
(5x-1). (2x+3)-3. (3x-1)=0
x^3 (2x-3)-x^2 (4x^2-6x+2)=0
x (x-1)-x^2+2x=5
(3x+2)(x-1)-3 (5x+2)+5 (11-4x)=25
8 (x-2)-2 (3x-4)=25
(3x+4). (5x-1)+(5x+2). (1-3x)+2=0
(5x-1). (2x+7)-(2x-3). (5x+9)
4 (x-1). (X+5)-(x+5). (X+2)=3. (X-1)(x+2)
2x^2+3 (x-1). (X+1)=5x(x+1)
4. (18-5x)-12 (3x-7)=1825. (2x-16)-6 .(x+4)
1/2x. (2/5-4x)+(2x+5).x=-13/2
Nhiều các bạn giả đùm mình nha
Thanh nhiều
Tìm x,biết
1) 3x^2 - 4x = 0
2) (x^2 - 5x) + x - 5 = 0
3) x^2 - 5x + 6 = 0
4) 5x(x-3) - x+3 = 0
5) x^2 - 2x + 5 = 0
6) x^2 + x -6 = 0
( x + 2 )^2 -9 = 0
( 5x + 1 )^2 - ( 5x - 3 ) ( 5x + 3 ) = 30
( x - 1 ) ( x^2 + x + 1 ) + x ( x + 2 ) ( 2 - x ) = 5