\(\Leftrightarrow\left(x+1\right)\left(3x-5\right)=0\)
hay \(x\in\left\{-1;\dfrac{5}{3}\right\}\)
\(\Leftrightarrow\left(x+1\right)\left(3x-5\right)=0\)
hay \(x\in\left\{-1;\dfrac{5}{3}\right\}\)
Bài 1: Tìm x biết a) x^3 - 4x^2 - x + 4= 0 b) x^3 - 3x^2 + 3x + 1=0 c) x^3 + 3x^2 - 4x - 12=0 d) (x-2)^2 - 4x +8 =0
Giải các phương trình sau
1. ( x-6) ( x+7) - 5 ( 6-x) ( 3x-1)=0
2. ( 3x+1)^2 - ( 2x-5)^3=0
3. ( 4x+3)^2 -4 (x-1)^2=0
4. (x+5)^2 (3x+2)^2 =x^2(x+5)^2
5. x(x+3)^2 - 4x=0
tìm x, biết:
a) (3x-1)2+(x+3)3-5(2x-3)(x+3)=0
b) x2-4x+4-(x+3)(x-3)=0
c) x2-3x+2=0
Tìm x, biết:
2(x + 3) – x2 – 3x = 0
tìm x biết
a.(x-2)2-(x-3)(x+3)=6
b.9x2-4-(3x-2)(4x-5)=0
c.x2(x+3)-x2-3x=0
tìm x biết
2x2-3x-5=0
3x2-7x+4=0
3x^2-2x(x+1)=0 TÌM x
Tìm x biết :
a) 3x(x-1)+x-1=0
b) (x-2)(x2+2x+7+2(x2-4)-5(x-2)=0
c) (2x-1)2-25=0
d) x3+27+(x+3)(x-9)=0