\(5x\left(1-2x\right)-3x\left(x+18\right)=0\)
=> \(5x-10x^2-3x^2-54x=0\)
=> \(-13x^2-49x=0\)
=> \(-x\left(13x+49\right)=0\)
=> \(-x=0\) hoặc : \(13x+49=0\)
=> \(x=0\) hoặc: \(13x=-49\Rightarrow x=\frac{-49}{13}\)
5x .(1-2x) -3x .(x +18) =0
tìm x : 5x(1-2x) - 3x ( x+18) =0
Giải phương trình
1) 16-8x=0
2) 7x+14=0
3) 5-2x=0
4) 3x-5=7
5) 8-3x=6
6) 8=11x+6
7)-9+2x=0
8) 7x+2=0
9) 5x-6=6+2x
10) 10+2x=3x-7
11) 5x-3=16-8x
12)-7-5x=8+9x
13) 18-5x=7+3x
14) 9-7x=-4x+3
15) 11-11x=21-5x
16) 2(-7+3x)=5-(x+2)
17) 5(8+3x)+2(3x-8)=0
18) 3(2x-1)-3x+1=0
19)-4(x-3)=6x+(x-3)
20)-5-(x+3)=2-5x
tìm x
a)5x ( 1 - 2x ) - 3x ( x + 18 ) = 0
b)5x - 10x^2 - 3x^2 - 54 = 0
5x(1-2x)-3x(x+18)=0
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
5x.(1-2x)-3x.(x+18)=0
Tìm x,biết:
5x(1-2x)-3x(x+18)=0
Tìm x 5x-(1-2x)-3x(x+18)=0
