x^2+0.8x+0.12=

Simple and best practice solution for x^2+0.8x+0.12= 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 x^2+0.8x+0.12= equation: 


Simplifying
x2 + 0.8x + 0.12 = 0

Reorder the terms:
0.12 + 0.8x + x2 = 0

Solving
0.12 + 0.8x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.12' to each side of the equation.
0.12 + 0.8x + -0.12 + x2 = 0 + -0.12

Reorder the terms:
0.12 + -0.12 + 0.8x + x2 = 0 + -0.12

Combine like terms: 0.12 + -0.12 = 0.00
0.00 + 0.8x + x2 = 0 + -0.12
0.8x + x2 = 0 + -0.12

Combine like terms: 0 + -0.12 = -0.12
0.8x + x2 = -0.12

The x term is 0.8x.  Take half its coefficient (0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
0.8x + 0.16 + x2 = -0.12 + 0.16

Reorder the terms:
0.16 + 0.8x + x2 = -0.12 + 0.16

Combine like terms: -0.12 + 0.16 = 0.04
0.16 + 0.8x + x2 = 0.04

Factor a perfect square on the left side:
(x + 0.4)(x + 0.4) = 0.04

Calculate the square root of the right side: 0.2

Break this problem into two subproblems by setting 
(x + 0.4) equal to 0.2 and -0.2.


Subproblem 1
x + 0.4 = 0.2

Simplifying
x + 0.4 = 0.2

Reorder the terms:
0.4 + x = 0.2

Solving
0.4 + x = 0.2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.4' to each side of the equation.
0.4 + -0.4 + x = 0.2 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + x = 0.2 + -0.4
x = 0.2 + -0.4

Combine like terms: 0.2 + -0.4 = -0.2
x = -0.2

Simplifying
x = -0.2


Subproblem 2
x + 0.4 = -0.2

Simplifying
x + 0.4 = -0.2

Reorder the terms:
0.4 + x = -0.2

Solving
0.4 + x = -0.2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.4' to each side of the equation.
0.4 + -0.4 + x = -0.2 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + x = -0.2 + -0.4
x = -0.2 + -0.4

Combine like terms: -0.2 + -0.4 = -0.6
x = -0.6

Simplifying
x = -0.6


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {-0.2, -0.6}

See similar equations:

| g-(-8)=-18 | | 15-t=21 | | 4w+3w-2w= | | y^2-12=9 | | x^2+0.9x+0.18= | | -139=-3x+5(2x-11) | | -10-6-15= | | 25m^2-8=-7 | | 9p+10q=42 | | X+28=9 | | x-2x(12-0.5)=2(4-2x)+20 | | f+8=-12 | | 5+2b-2= | | -x^2+6x+4= | | 63+x+14=90 | | -9-8x^2=-209 | | 5a-3b+7a-9b-10a+8b+3a-5b-6a+b= | | z+(6+42)=180 | | -43-3x=-8x+57 | | 4v+4-11=9 | | 8x-22=5x+50 | | 2x^2+12x+24=213 | | 63=3x-6(x-6) | | x^2+66x+10=0 | | (x-5)(x+1)+(x-5)(2x-3)=10 | | X^4+px^2+q=0 | | -x-18=12 | | b-12=-40 | | 8+3m=-5 | | 8-(11)= | | 18y-12+2y=52 | | 5x+10y+5=180 |

Equations solver categories