5x-6=6+2x
5x-2x=6+6
3x =12
x =12:3
x =4
Vậy x=4
Đúng 1
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Bài 4: Phương trình tích
Các câu hỏi tương tự
a) (5x-15)(4+6x)=0
b) (2x-1)(5x-6)(1/2x-3/4)=0
c) (3-4x)(2x-3/4-x-4/3)=0
d) (2/3x-1/6)[5(x-1)-3/2-(2-3)(x-1)/3]=0
giải phương trình tícha, 3x-1=0 b, 5x-2=x+4c, 2.(4-2x)-1 =x-3d, 2x-1/3 - x+2/6=3x e, (2x-1).(x.x-6)=0f, (x+2) .(5-4x)=x.x+4x+4
giải pt (x - 1)(2x² - 10) = 0
(2x - 7)² - 6(2x - 7)(x - 3) = 0
(5x + 3)(x² + 4) = 0
a) x²-6x+5=0
b) 2x² -x-6=0
c) -4x²+3x+7=0
d) 4x²-5x-6=0
a) (2x-1)^2+(2-x)(2x-1)=0
b) x^3+1=x(x+1)
c) x^2-5x+6=0
a) (2x +1)(3 – x)(4 - 2x) = 0 b)2x(x – 3) + 5(x – 3) = 0
c) (x2 – 4) – (x – 2)(3 – 2x) = 0 d) x2 – 5x + 6 = 0
e) (2x + 5)2 = (x + 2)2 f) 2x3 + 6x2 = x2 + 3x
5/ (x2 – 4) + (x – 2)(4 – 2x) = 0
6/ x(2x – 7) – 4x + 14 = 0 7/ x2 – x – (3x – 3) = 0
8/ (x2 – 2x + 1) – 4 = 0 9/ 4x2 + 4x + 1 = x2
10/ x2 – x = - 2x + 2 11/ x2 – 5x + 6 = 0
11/ x^2 -- 5x + 6 = 0
Câu 11 là x mũ 2 nha giúp dùm e nha anh chị .
Giải pt
a) 2x(x+5) -(x-3) ²=x²+6
b) 6(x-3) +(x-1) ²-(x+1) ²=2x
c) 2x-3(x-2) =x+6+(x+1)
d) (x+4) ²-(x+8) (x-8) =96
e) 5x-2/6+3-4x/2=2-x+7/3
f) 2x-1/2=2x+1/4-1-2x/8
Tìm x, biết
a)3x³-27x=0
b) 2x³-12x²+18x=0
a. x (x²-1)=0
b. (x-1/2) 2x+5=0
c. x-2 (2/3x - 6)=0
d. x² - 2x=0
e.(x²-2x+1)-4=0
f.x(2x-1)=0
g.4x²+4x+1=0
h.x²-5x+6=0
i. 2x²+3x=0