3x^2+12x-10=0

Simple and best practice solution for 3x^2+12x-10=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 3x^2+12x-10=0 equation:


Simplifying
3x2 + 12x + -10 = 0

Reorder the terms:
-10 + 12x + 3x2 = 0

Solving
-10 + 12x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-3.333333333 + 4x + x2 = 0

Move the constant term to the right:

Add '3.333333333' to each side of the equation.
-3.333333333 + 4x + 3.333333333 + x2 = 0 + 3.333333333

Reorder the terms:
-3.333333333 + 3.333333333 + 4x + x2 = 0 + 3.333333333

Combine like terms: -3.333333333 + 3.333333333 = 0.000000000
0.000000000 + 4x + x2 = 0 + 3.333333333
4x + x2 = 0 + 3.333333333

Combine like terms: 0 + 3.333333333 = 3.333333333
4x + x2 = 3.333333333

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 3.333333333 + 4

Reorder the terms:
4 + 4x + x2 = 3.333333333 + 4

Combine like terms: 3.333333333 + 4 = 7.333333333
4 + 4x + x2 = 7.333333333

Factor a perfect square on the left side:
(x + 2)(x + 2) = 7.333333333

Calculate the square root of the right side: 2.708012801

Break this problem into two subproblems by setting 
(x + 2) equal to 2.708012801 and -2.708012801.

Subproblem 1

x + 2 = 2.708012801 Simplifying x + 2 = 2.708012801 Reorder the terms: 2 + x = 2.708012801 Solving 2 + x = 2.708012801 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 2.708012801 + -2 Combine like terms: 2 + -2 = 0 0 + x = 2.708012801 + -2 x = 2.708012801 + -2 Combine like terms: 2.708012801 + -2 = 0.708012801 x = 0.708012801 Simplifying x = 0.708012801

Subproblem 2

x + 2 = -2.708012801 Simplifying x + 2 = -2.708012801 Reorder the terms: 2 + x = -2.708012801 Solving 2 + x = -2.708012801 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -2.708012801 + -2 Combine like terms: 2 + -2 = 0 0 + x = -2.708012801 + -2 x = -2.708012801 + -2 Combine like terms: -2.708012801 + -2 = -4.708012801 x = -4.708012801 Simplifying x = -4.708012801

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.708012801, -4.708012801}

See similar equations:

| -(x+3)+2x-1=6 | | x^2-8x+2=0graph | | 1000=-5x^2+150x | | 4(7+2z)=15-8z | | 326=4x | | 4=-0.5x+4 | | 3-5x=11-7x | | 20X+X^3-9X^2=0 | | x-5.6=1.6 | | 3=-0.5x+4 | | 2x-5x-5=8-3x-11 | | 63=7+7i | | g^2+7g=144 | | 6x+46=9x+13 | | 5a*40b= | | 5(2a+1)-9a=8-6 | | 5*40b= | | 5=a*2 | | 9w^2-1=0 | | m^2-11m+18=0 | | 12n^2-11+2=0 | | 5x*4=17*5x | | 5x+4=-143-2 | | (8x+5)+(5x+6)=180 | | 2(3(x-2)-1)+1=(2x+1)3+7 | | 5x+4=-143 | | 9x+3x=60 | | 2x(x-4)=2(x^2-6x-8) | | 2(4-5(3x-5))=60-15x | | x=4m^2 | | 9=0.03v+0.003v^2 | | 2(5x+1)=3(3x+7) |

Equations solver categories