a)3x(x-1)+x-1=0
=>(x-1).(3x+1)=0
=>x-1=0 =>x=1
hoặc 3x+1=0 =>3x=-1 =>x=-1/3
b) dấu ngoặc thứ 2 đâu
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Bài 1: Tìm x
a) (2x-1) ² - 25 = 0
b) 3x (x-1) + x - 1 = 0
c) 2(x+3) - x ² - 3x = 0
d) x(x - 2) + 3x - 6 = 0
e) 4x ² - 4x +1 = 0
f) x +5x ² = 0
g) x ² 2x -3 = 0
Tìm x
a) 4x(x-2) + x-2 = 0
b) (3x-1)^2 - 9 = 0
c) x^3 - 8 + (x-2)(x+1) = 0
Tìm x
a) 4x(x-2) + x - 2 = 0
b) (3x-1)^2 - 9 = 0
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Tìm x
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b) 5(2x - 3) + 4x(x - 2) + 2x(3 - 2x) = 0
c) 3x(2 - x) + 2x(x - 1) = 5x(x + 3)
d) 3x (x + 1) - 5x(3 - x) + 6(x^2 + 2x + 3) = 0
Tìm x
a, 2x.(x-3)+3(x-3)=0
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TÌM X
a. 3.(x^2-x+2)-x.(2+3x)=0
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bài 1 tìm x
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giúp mik vs nhanh ak cảm ơn nhìu!
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tìm x
a) 3.(x-3)-4x+12=0
b)(x+2)^2-(x+2).(x-2) =0
c)x^3+3x=3x^2+1
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Bài 3 tìm x
a) (x-1)(x-5) 3=0
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