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
Bài 5: Tìm x (Giải phương trinh)
a)x^3-13x=0
b) 5x(x – 2000) – x + 2000 = 0
c) 2x(x – 2) + 3(x – 2) = 0
d) x + 1 = (x + 1)2
e) x + 5x2 = 0
f) x3 + x = 0
Bài 5: Tìm x (Giải phương trình)
a)x^3-13x=0 b) 5x(x – 2000) – x + 2000 = 0
c) 2x(x – 2) + 3(x – 2) = 0 d) x + 5x2 = 0
d) x + 1 = (x + 1)2 e) x3 + x = 0
Tìm x biết: a, 5x(x-3)-x²+9=0 b, 2x²+5x=0
tìm x :
5x.(x-3)-x+3=0
Tìm x, biết: 5x(x – 3) – x + 3 = 0
Tìm x:
a) 5x(x-1)=x-1
b) 2(x+5)-x2-5x=0
c) x2-2x-3=0
d) 2x2+5x-3=0
Tìm x biết: a)x(x-3)+x-3=0 b)(5x-4)^2-16^2=0
Tìm x
5x(x-3)(-2x+6)=0
(X+2)2-(x-2)(x+2)=0
(2x+3)2-(x-1)=0
X3-8=(x-2)3
X3+5x2-4x-20=0
tìm x
(x+1)^3 + (2x-5)^3 + (5x+1)^3 - 3(x+1)(2x-5)(5x+1)=0
tìm x biết:
a.(x+3)^2-(x+3)(x-3)=0
b.5x(x^2+4)=0