9x^2+9x-6=0

Simple and best practice solution for 9x^2+9x-6=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 9x^2+9x-6=0 equation:


Simplifying
9x2 + 9x + -6 = 0

Reorder the terms:
-6 + 9x + 9x2 = 0

Solving
-6 + 9x + 9x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-2 + 3x + 3x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-2 + 3x + 3x2)' equal to zero and attempt to solve: Simplifying -2 + 3x + 3x2 = 0 Solving -2 + 3x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -0.6666666667 + x + x2 = 0 Move the constant term to the right: Add '0.6666666667' to each side of the equation. -0.6666666667 + x + 0.6666666667 + x2 = 0 + 0.6666666667 Reorder the terms: -0.6666666667 + 0.6666666667 + x + x2 = 0 + 0.6666666667 Combine like terms: -0.6666666667 + 0.6666666667 = 0.0000000000 0.0000000000 + x + x2 = 0 + 0.6666666667 x + x2 = 0 + 0.6666666667 Combine like terms: 0 + 0.6666666667 = 0.6666666667 x + x2 = 0.6666666667 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x2 = 0.6666666667 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = 0.6666666667 + 0.25 Combine like terms: 0.6666666667 + 0.25 = 0.9166666667 1.25 + x2 = 0.9166666667 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 0.9166666667 Calculate the square root of the right side: 0.957427108 Break this problem into two subproblems by setting (x + 0.5) equal to 0.957427108 and -0.957427108.

Subproblem 1

x + 0.5 = 0.957427108 Simplifying x + 0.5 = 0.957427108 Reorder the terms: 0.5 + x = 0.957427108 Solving 0.5 + x = 0.957427108 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.957427108 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.957427108 + -0.5 x = 0.957427108 + -0.5 Combine like terms: 0.957427108 + -0.5 = 0.457427108 x = 0.457427108 Simplifying x = 0.457427108

Subproblem 2

x + 0.5 = -0.957427108 Simplifying x + 0.5 = -0.957427108 Reorder the terms: 0.5 + x = -0.957427108 Solving 0.5 + x = -0.957427108 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.957427108 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.957427108 + -0.5 x = -0.957427108 + -0.5 Combine like terms: -0.957427108 + -0.5 = -1.457427108 x = -1.457427108 Simplifying x = -1.457427108

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.457427108, -1.457427108}

Solution

x = {0.457427108, -1.457427108}

See similar equations:

| x/-36=6 | | 2x+20=78 | | 6f-16= | | -5(2x-3)=45 | | 3x^2+31+56=0 | | 7x+2=52-3x | | -4.9q+1.3=-11.1-1.8q | | 4x-3+x+3=90 | | 12x-5+24x+5=180 | | X=100+0.6x | | Cos(piX)=0.5 | | 2x-3*-3=6 | | 2(x-3)(5x-1)-8=(2x-3)(5x+2)+9 | | 7+25=46 | | 6n^2+18n+12=0 | | 5-1/2(x-6)=24 | | 20000=-0.5x^2+222x-1600 | | 15/7+1/3t=6 | | 2w+2(3w+3)=26 | | 16-7b=-3d+2 | | 5y-1+y+51=7y+50-4y | | 12(x+9)=27 | | 5y-1+y+51=7y+504y | | y=-2x-1/2 | | 10+5(x-3)=13-4x | | p+0.3p=0.67 | | x+2x-7=3x-7 | | 20000=-0.5x^2+222x-160 | | -3x^2+14x+24=0 | | 4y+12x=-12 | | (X^6/9y^-4)^-1/2 | | 2(x+2)=5x-35 |

Equations solver categories