Question

Tìm x biết (3x -5) x (2x- 1)- (x+ 2) x (6x- 1) = 0

Answer 1

=>6x^2-3x-10x+5-6x^2+x-12x+2=0

=>-24x+7=0

=>x=7/24

Answer 2

`(3x-5)(2x-1)-(x+2)(6x-1)=0`

`<=>(6x^2-3x-10x+5)-(6x^2-x+12x-2)=0`

`<=>6x^2-13x+5-6x^2-11x+2=0`

`<=>-24x+7=0`

`<=>-24x=-7`

`<=>x=7/24`

Vậy `S={7/24}`