6-6x-5x^2=0

Simple and best practice solution for 6-6x-5x^2=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 6-6x-5x^2=0 equation:


Simplifying
6 + -6x + -5x2 = 0

Solving
6 + -6x + -5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
-1.2 + 1.2x + x2 = 0

Move the constant term to the right:

Add '1.2' to each side of the equation.
-1.2 + 1.2x + 1.2 + x2 = 0 + 1.2

Reorder the terms:
-1.2 + 1.2 + 1.2x + x2 = 0 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + 1.2x + x2 = 0 + 1.2
1.2x + x2 = 0 + 1.2

Combine like terms: 0 + 1.2 = 1.2
1.2x + x2 = 1.2

The x term is 1.2x.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2x + 0.36 + x2 = 1.2 + 0.36

Reorder the terms:
0.36 + 1.2x + x2 = 1.2 + 0.36

Combine like terms: 1.2 + 0.36 = 1.56
0.36 + 1.2x + x2 = 1.56

Factor a perfect square on the left side:
(x + 0.6)(x + 0.6) = 1.56

Calculate the square root of the right side: 1.2489996

Break this problem into two subproblems by setting 
(x + 0.6) equal to 1.2489996 and -1.2489996.

Subproblem 1

x + 0.6 = 1.2489996 Simplifying x + 0.6 = 1.2489996 Reorder the terms: 0.6 + x = 1.2489996 Solving 0.6 + x = 1.2489996 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = 1.2489996 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = 1.2489996 + -0.6 x = 1.2489996 + -0.6 Combine like terms: 1.2489996 + -0.6 = 0.6489996 x = 0.6489996 Simplifying x = 0.6489996

Subproblem 2

x + 0.6 = -1.2489996 Simplifying x + 0.6 = -1.2489996 Reorder the terms: 0.6 + x = -1.2489996 Solving 0.6 + x = -1.2489996 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = -1.2489996 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = -1.2489996 + -0.6 x = -1.2489996 + -0.6 Combine like terms: -1.2489996 + -0.6 = -1.8489996 x = -1.8489996 Simplifying x = -1.8489996

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6489996, -1.8489996}

See similar equations:

| 45/28b=-45/7 | | -3(6+4x)=-162 | | -(16x-8)-(-2x+4y)= | | C=28l+19w | | 5/8x-2=18 | | [5x^4y^3]2= | | x^4=1472.2234 | | j+1-3=3-4 | | 3(3x)+2(5x)=60x-500 | | 3(7+x)=3x | | 3(2-x)=6x | | 7+x+12=35 | | x^2=1472.2234 | | 16x+4y-8=0 | | 80=4y+16 | | 2(3x+1)=(x+2) | | 8(x+5)=2(x+4) | | 4(x-12)=-2(24-2x) | | 0=12x^2-68x+66 | | -24=2 | | 3(x+5)(3x-2)=0 | | -6x-7+8x=-7x+5 | | 20x^3+180x^2=0 | | y^3+2y^2-1y-2=0 | | -2[8-y]=-6y | | 45+2.50=3.75x | | 28=p+21 | | (2x-5)(3x^2+2)= | | -2n-n=1-4n | | 1764=2x^2+5x | | 3(7x-4)=5(3x+6) | | 5x-2(5x+16)=3 |

Equations solver categories