5x - 10x + 3 >9 -2x
5x - 10x +2x >-3 +9
-3x > 6
x<-2
5x-10x+3 > 9 - 2x
5x - 10x + 2x > 9 -3
-3x > 6-2
x<
Giúp mik với. Tính A)(10x+9)x-(5x-1)(2x+3); B)(⅓-y⁴)² C)(5x+y)².
a, (10x + 9) x - (5x - 1) (2x+3) = 8
b, (3x - 5) (7 - 5x) + (5x + 2) (3x - 2) - 2 = 0
tìm x biết (10x+9)x-(5x-1)(2x+3)=8
Tìm x biết (10x+9)x-(5x-1)(2x+3)=8
(3x-1).(2x+7)-(x+1).(6x-5)=16
(10x+9).x-(5x-1).(2x+3)=8
x.(x+1).(x+6)-x3=5x
a, (3x-1) (2x+7)-(x+1) (6x-5)
b, (10x+9).x-(5x-1) (2x+3)= 8
Tìm x:
a) 4x(3x-7)-6(2x^2-5x+1)=12
b) (5x+3)(4x-1)+(10x-7)(-2x+3)=27
c) (8x-5)(3x+2)-(12x+7)(2x-1)=17
d) (5x+9)(6x-1)-(2x-3)(15x+1)=-190
Thực hiện phép tính
1) (x-3)(x2+3x+9) -(x2+3)
2) (5x2-10x):5x+(5x+2)2.(5x+2)
3) (4x2y3-10xy3):2xy2+5y
4) (5-2x).5x+15x
giúp em vs ạ em đag cần lời giải gấp 
1).(4-3x)(10-5x)=0 2).(7-2x)(4+8x)=0 3).(9-7x)(11-3x)=0
4).(7-14x)(x-2)=0 5).(\(\dfrac{7}{8}\)-2x)(3x+\(\dfrac{1}{3}\))=0 6).3x-2x\(^2\)
7).5x+10x\(^2\)
