-5x^2+12x+0.5=0

Simple and best practice solution for -5x^2+12x+0.5=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 -5x^2+12x+0.5=0 equation:


Simplifying
-5x2 + 12x + 0.5 = 0

Reorder the terms:
0.5 + 12x + -5x2 = 0

Solving
0.5 + 12x + -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'.
-0.1 + -2.4x + x2 = 0

Move the constant term to the right:

Add '0.1' to each side of the equation.
-0.1 + -2.4x + 0.1 + x2 = 0 + 0.1

Reorder the terms:
-0.1 + 0.1 + -2.4x + x2 = 0 + 0.1

Combine like terms: -0.1 + 0.1 = 0.0
0.0 + -2.4x + x2 = 0 + 0.1
-2.4x + x2 = 0 + 0.1

Combine like terms: 0 + 0.1 = 0.1
-2.4x + x2 = 0.1

The x term is -2.4x.  Take half its coefficient (-1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
-2.4x + 1.44 + x2 = 0.1 + 1.44

Reorder the terms:
1.44 + -2.4x + x2 = 0.1 + 1.44

Combine like terms: 0.1 + 1.44 = 1.54
1.44 + -2.4x + x2 = 1.54

Factor a perfect square on the left side:
(x + -1.2)(x + -1.2) = 1.54

Calculate the square root of the right side: 1.240967365

Break this problem into two subproblems by setting 
(x + -1.2) equal to 1.240967365 and -1.240967365.

Subproblem 1

x + -1.2 = 1.240967365 Simplifying x + -1.2 = 1.240967365 Reorder the terms: -1.2 + x = 1.240967365 Solving -1.2 + x = 1.240967365 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = 1.240967365 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = 1.240967365 + 1.2 x = 1.240967365 + 1.2 Combine like terms: 1.240967365 + 1.2 = 2.440967365 x = 2.440967365 Simplifying x = 2.440967365

Subproblem 2

x + -1.2 = -1.240967365 Simplifying x + -1.2 = -1.240967365 Reorder the terms: -1.2 + x = -1.240967365 Solving -1.2 + x = -1.240967365 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = -1.240967365 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = -1.240967365 + 1.2 x = -1.240967365 + 1.2 Combine like terms: -1.240967365 + 1.2 = -0.040967365 x = -0.040967365 Simplifying x = -0.040967365

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.440967365, -0.040967365}

See similar equations:

| 6x^2=324 | | 10x+20y=0 | | 6=-13+x | | 2n-6n-7=1-4n-8 | | s^2+13sy+36y^2=0 | | 6x+14=5x-12 | | 8-5n+1=56 | | 16+8r-4r+4=r | | 4(12-2z)+4=2z-(4z+2) | | 20x+10y=z | | 10x+20y=z | | 5x+999=4 | | 12x^2-5x=11 | | -18+y=12 | | 3(x-6)+5=-25 | | 3=39-6 | | 12xsquared-5x=11 | | X^2+y^4+4x-10y-51=0 | | 2sin^2(x)+-1=0 | | 5(-6n-1)-6=109 | | 2*14-18= | | z^3=2iz^2 | | ln(x+6)+ln(x)=ln(2x+32) | | 140n=(n-2)180 | | x^2-4=252 | | 700x-0.38=900x+0.86 | | 6(5+4x)=-186 | | 10x-8+8=0 | | 5x-(x-2)=x-3(x+5) | | 1.7x-26=1.2x+5 | | Y^2+15Y-2=0 | | 9(x+3)=3(3x+6)+9 |

Equations solver categories