Solve the 1 element 3rd equation 2x 2 6x 2 6x 1 0

It should be 2x 3, one root is the cube root of 1-1 2, you can't type it out in this, and two are complex solutions, you can solve it yourself.

1) a=3, b=-6, c=1, so x=

i.e. x 1 =

3 ，x 2 =

2) Original = 9-16 (-8) + 1- 2

2 =9+2+1-3=9 ,4, Calculation: (1) Solve the quadratic equation with a clear solution: 3x 2 -6x+1=0 before the feastWalking stool.

2） (1 3 ) 2 -16÷(-2 ) 3 +(tan60° )0 -2 3 cos30° ．

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Answer: 3x 1 6x is a quadratic equation.

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Solution: 6 (1-x) + 5 (x-2) = 2 (2x + 3), 6-6x + 5x-10 = 4x + 6, x - 4 = 4x + 6, 5x = -10, bury divination.

x=-2, the solution of the equation is envy.

x=-2。Laughing liquid shoot.

Solve the potato trillion liquid. 6(1-x)+5(x-2)=2(2x+3)6-6x+5x-10=4x+6

x-4=4x+6

5x=-10

x=-10 5=-2

x^3+6x^2+11x+6

x^3+5x^2+6x)+x^2+5x+6x(x^2+5x+6)+x^2+5x+6

x+1)(x^2+5x^+6)

x+1)(x+2)(x+3)

The excavation is carried out by the ridge next to the mountain x1=-1,x2=-2,x3=-3

2x+1)(x-3)=-6

Solution: 2x -5x-3 + 6 = 0

2x Yuanhao Shen socks - 5x+3=0

Hail 2x-3) (x-1) = 0

2x-3=0 x-1=0

x1=3/2 x2=1

Look at the right side as a whole.

Then move the item. (3x-2)(x+1)-(4-6x)=0, i.e., (3x-2)(x+1)+2(3x-2)=0 is refactored.

Get (3x-2)(x+3)=0

Solve x=2 3 or -3