6x^2+9x-12=

Simple and best practice solution for 6x^2+9x-12= 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 6x^2+9x-12= equation:


Simplifying
6x2 + 9x + -12 = 0

Reorder the terms:
-12 + 9x + 6x2 = 0

Solving
-12 + 9x + 6x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-4 + 3x + 2x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-4 + 3x + 2x2)' equal to zero and attempt to solve: Simplifying -4 + 3x + 2x2 = 0 Solving -4 + 3x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -2 + 1.5x + x2 = 0 Move the constant term to the right: Add '2' to each side of the equation. -2 + 1.5x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + 1.5x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 1.5x + x2 = 0 + 2 1.5x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 1.5x + x2 = 2 The x term is 1.5x. Take half its coefficient (0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. 1.5x + 0.5625 + x2 = 2 + 0.5625 Reorder the terms: 0.5625 + 1.5x + x2 = 2 + 0.5625 Combine like terms: 2 + 0.5625 = 2.5625 0.5625 + 1.5x + x2 = 2.5625 Factor a perfect square on the left side: (x + 0.75)(x + 0.75) = 2.5625 Calculate the square root of the right side: 1.600781059 Break this problem into two subproblems by setting (x + 0.75) equal to 1.600781059 and -1.600781059.

Subproblem 1

x + 0.75 = 1.600781059 Simplifying x + 0.75 = 1.600781059 Reorder the terms: 0.75 + x = 1.600781059 Solving 0.75 + x = 1.600781059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 1.600781059 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 1.600781059 + -0.75 x = 1.600781059 + -0.75 Combine like terms: 1.600781059 + -0.75 = 0.850781059 x = 0.850781059 Simplifying x = 0.850781059

Subproblem 2

x + 0.75 = -1.600781059 Simplifying x + 0.75 = -1.600781059 Reorder the terms: 0.75 + x = -1.600781059 Solving 0.75 + x = -1.600781059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -1.600781059 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -1.600781059 + -0.75 x = -1.600781059 + -0.75 Combine like terms: -1.600781059 + -0.75 = -2.350781059 x = -2.350781059 Simplifying x = -2.350781059

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.850781059, -2.350781059}

Solution

x = {0.850781059, -2.350781059}

See similar equations:

| 6x^2+9x-35= | | 8x^2+24x-15= | | 27/t=-3 | | 3(2x-14)+x=15-(9x-5) | | 8x^2+54x+9= | | 18x-y=432 | | 18x-y=-144 | | 18x+y=144 | | 1-2(8x-8)=-9(x+1)+1 | | 18x+y=432 | | 3x+2x=28 | | 12n+8=4n-8 | | 12n+8=7+4n | | 12/a=12 | | 5.2y+6=5.5y+6.3 | | -9x+3=6x-12 | | 4x-5=9x | | 2(2x+3)=x+9+2x+2 | | 10+7=765 | | 5x-(8-x)=2[-4-(3+5x-13)] | | -101=-5y-1 | | -0.2x+2.2x=8 | | 18a^6/3a^2 | | 7(7+1/3x)=148/3 | | 5x-(-x)=2[-4-(3+5x-13)] | | 3x+7+1=2(5x+1)+2 | | 3+x-(5-3x)=4 | | 43.3=1.5d+3.2d | | -14/j=-8 | | 6-b=18 | | -3=y/-3+8 | | 6(2x-5)=5(x-6)-7 |

Equations solver categories