-0.2x^2+0.1x=-0.04

Simple and best practice solution for -0.2x^2+0.1x=-0.04 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 -0.2x^2+0.1x=-0.04 equation:


Simplifying
-0.2x2 + 0.1x = -0.04

Reorder the terms:
0.1x + -0.2x2 = -0.04

Solving
0.1x + -0.2x2 = -0.04

Solving for variable 'x'.

Reorder the terms:
0.04 + 0.1x + -0.2x2 = -0.04 + 0.04

Combine like terms: -0.04 + 0.04 = 0.00
0.04 + 0.1x + -0.2x2 = 0.00

Begin completing the square.  Divide all terms by
-0.2 the coefficient of the squared term: 

Divide each side by '-0.2'.
-0.2 + -0.5x + x2 = 0.0

Move the constant term to the right:

Add '0.2' to each side of the equation.
-0.2 + -0.5x + 0.2 + x2 = 0.0 + 0.2

Reorder the terms:
-0.2 + 0.2 + -0.5x + x2 = 0.0 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + -0.5x + x2 = 0.0 + 0.2
-0.5x + x2 = 0.0 + 0.2

Combine like terms: 0.0 + 0.2 = 0.2
-0.5x + x2 = 0.2

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 0.2 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 0.2 + 0.0625

Combine like terms: 0.2 + 0.0625 = 0.2625
0.0625 + -0.5x + x2 = 0.2625

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 0.2625

Calculate the square root of the right side: 0.512347538

Break this problem into two subproblems by setting 
(x + -0.25) equal to 0.512347538 and -0.512347538.

Subproblem 1

x + -0.25 = 0.512347538 Simplifying x + -0.25 = 0.512347538 Reorder the terms: -0.25 + x = 0.512347538 Solving -0.25 + x = 0.512347538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 0.512347538 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 0.512347538 + 0.25 x = 0.512347538 + 0.25 Combine like terms: 0.512347538 + 0.25 = 0.762347538 x = 0.762347538 Simplifying x = 0.762347538

Subproblem 2

x + -0.25 = -0.512347538 Simplifying x + -0.25 = -0.512347538 Reorder the terms: -0.25 + x = -0.512347538 Solving -0.25 + x = -0.512347538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -0.512347538 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -0.512347538 + 0.25 x = -0.512347538 + 0.25 Combine like terms: -0.512347538 + 0.25 = -0.262347538 x = -0.262347538 Simplifying x = -0.262347538

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.762347538, -0.262347538}

See similar equations:

| 9-(5x+3)=20-7x | | b+c=10a | | 3y^6(y^3-4y)+5y^9= | | -24x=30 | | 0x^3y^2= | | 3x-4x-6=4+5x+2 | | s+3t=6 | | 5/8x28 | | -4x+4x+14=24 | | -6x^2-18x-24=0 | | 7x-7(5)=21 | | 8x-(4x-6)=18 | | 150-6x=-250 | | Y=-7.5+6 | | -19+17=-6x+x | | 4n^7=3 | | 2x-16=4x-14 | | Y=-4(-5)-10 | | -10x-8x=-74 | | Y=-2(-6)-18 | | 0=x-9,8(1,6) | | Y=2(-6)-18 | | -3(4x-5)=2(1-6x)+13 | | -1/3z=1/4 | | x^2-28x=11 | | Y=2(-0.5)+6 | | 14=5x-19 | | x-11/21=-10/21 | | x-1121=-10/21 | | 24x-23x+21=16 | | -7=-7x+14 | | 16+16+13+12= |

Equations solver categories