(6x^2-6x+12)+(9x^2+9x-57)=

Simple and best practice solution for (6x^2-6x+12)+(9x^2+9x-57)= 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^2-6x+12)+(9x^2+9x-57)= equation:


Simplifying
(6x2 + -6x + 12) + (9x2 + 9x + -57) = 0

Reorder the terms:
(12 + -6x + 6x2) + (9x2 + 9x + -57) = 0

Remove parenthesis around (12 + -6x + 6x2)
12 + -6x + 6x2 + (9x2 + 9x + -57) = 0

Reorder the terms:
12 + -6x + 6x2 + (-57 + 9x + 9x2) = 0

Remove parenthesis around (-57 + 9x + 9x2)
12 + -6x + 6x2 + -57 + 9x + 9x2 = 0

Reorder the terms:
12 + -57 + -6x + 9x + 6x2 + 9x2 = 0

Combine like terms: 12 + -57 = -45
-45 + -6x + 9x + 6x2 + 9x2 = 0

Combine like terms: -6x + 9x = 3x
-45 + 3x + 6x2 + 9x2 = 0

Combine like terms: 6x2 + 9x2 = 15x2
-45 + 3x + 15x2 = 0

Solving
-45 + 3x + 15x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-15 + x + 5x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-15 + x + 5x2)' equal to zero and attempt to solve: Simplifying -15 + x + 5x2 = 0 Solving -15 + x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -3 + 0.2x + x2 = 0 Move the constant term to the right: Add '3' to each side of the equation. -3 + 0.2x + 3 + x2 = 0 + 3 Reorder the terms: -3 + 3 + 0.2x + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 0.2x + x2 = 0 + 3 0.2x + x2 = 0 + 3 Combine like terms: 0 + 3 = 3 0.2x + x2 = 3 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. 0.2x + 0.25 + x2 = 3 + 0.25 Reorder the terms: 0.25 + 0.2x + x2 = 3 + 0.25 Combine like terms: 3 + 0.25 = 3.25 0.25 + 0.2x + x2 = 3.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 3.25 Calculate the square root of the right side: 1.802775638 Break this problem into two subproblems by setting (x + 0.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

x + 0.5 = 1.802775638 Simplifying x + 0.5 = 1.802775638 Reorder the terms: 0.5 + x = 1.802775638 Solving 0.5 + x = 1.802775638 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 = 1.802775638 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.802775638 + -0.5 x = 1.802775638 + -0.5 Combine like terms: 1.802775638 + -0.5 = 1.302775638 x = 1.302775638 Simplifying x = 1.302775638

Subproblem 2

x + 0.5 = -1.802775638 Simplifying x + 0.5 = -1.802775638 Reorder the terms: 0.5 + x = -1.802775638 Solving 0.5 + x = -1.802775638 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 = -1.802775638 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.802775638 + -0.5 x = -1.802775638 + -0.5 Combine like terms: -1.802775638 + -0.5 = -2.302775638 x = -2.302775638 Simplifying x = -2.302775638

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.302775638, -2.302775638}

Solution

x = {1.302775638, -2.302775638}

See similar equations:

| (y-8)(y-8)-72=0 | | -0.25(4v-8)=.5(4-2v) | | 8y-9=12y+27 | | 56-7x=2x+19 | | 12-10x=162-45x | | 122-7x=20x+23 | | .5y+2=8y-.3y | | (-4/6)+(8/6)= | | 14-7x=94-21x | | 14-7x=94-29x | | -10X-5(10)=0 | | .5y+2=1.1 | | 4x+6=-98-8x | | ((4x^2)y)((-3x^5)y^4)= | | 4=4(-4)+19 | | 95-3x=3x+11 | | 8x+4(4x+19)=-20 | | 2z+14=18 | | x^2+18x-40= | | -4=-4x-14 | | 8x^2+7x-15= | | y^2+28x+7y+4xy= | | -8x+4(8)=0 | | 6x-18=6x+2 | | (X-4)(3X+7)=0 | | 20x-5(4x-6)=30 | | 4x-7=x+3(4+x) | | 5x-5=-15 | | 6s-12-2(s+2)= | | -x^2-8x-28=0 | | x^2-4x+32= | | -4x^2-3x+0=0 |

Equations solver categories