20x^2+38x+5=0

Simple and best practice solution for 20x^2+38x+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 20x^2+38x+5=0 equation:


Simplifying
20x2 + 38x + 5 = 0

Reorder the terms:
5 + 38x + 20x2 = 0

Solving
5 + 38x + 20x2 = 0

Solving for variable 'x'.

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

Divide each side by '20'.
0.25 + 1.9x + x2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 1.9x + -0.25 + x2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 1.9x + x2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 1.9x + x2 = 0 + -0.25
1.9x + x2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
1.9x + x2 = -0.25

The x term is 1.9x.  Take half its coefficient (0.95).
Square it (0.9025) and add it to both sides.

Add '0.9025' to each side of the equation.
1.9x + 0.9025 + x2 = -0.25 + 0.9025

Reorder the terms:
0.9025 + 1.9x + x2 = -0.25 + 0.9025

Combine like terms: -0.25 + 0.9025 = 0.6525
0.9025 + 1.9x + x2 = 0.6525

Factor a perfect square on the left side:
(x + 0.95)(x + 0.95) = 0.6525

Calculate the square root of the right side: 0.807774721

Break this problem into two subproblems by setting 
(x + 0.95) equal to 0.807774721 and -0.807774721.

Subproblem 1

x + 0.95 = 0.807774721 Simplifying x + 0.95 = 0.807774721 Reorder the terms: 0.95 + x = 0.807774721 Solving 0.95 + x = 0.807774721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.95' to each side of the equation. 0.95 + -0.95 + x = 0.807774721 + -0.95 Combine like terms: 0.95 + -0.95 = 0.00 0.00 + x = 0.807774721 + -0.95 x = 0.807774721 + -0.95 Combine like terms: 0.807774721 + -0.95 = -0.142225279 x = -0.142225279 Simplifying x = -0.142225279

Subproblem 2

x + 0.95 = -0.807774721 Simplifying x + 0.95 = -0.807774721 Reorder the terms: 0.95 + x = -0.807774721 Solving 0.95 + x = -0.807774721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.95' to each side of the equation. 0.95 + -0.95 + x = -0.807774721 + -0.95 Combine like terms: 0.95 + -0.95 = 0.00 0.00 + x = -0.807774721 + -0.95 x = -0.807774721 + -0.95 Combine like terms: -0.807774721 + -0.95 = -1.757774721 x = -1.757774721 Simplifying x = -1.757774721

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.142225279, -1.757774721}

See similar equations:

| 12q+145=367 | | x^2+(a+b)*x+ab=0 | | 18x^2+40x+18=0 | | 12x^2+21x+13=0 | | 4p+24=242 | | 2=37 | | 2=39 | | x-38=-46 | | x-38=-48 | | x^2-4y^2+24y-32=0 | | 3a+36=5a+20 | | (a-10)*(a+10)=200 | | 18-(x+50)=2-(4-8)+2(x-1) | | Graph-2x-y=1 | | 2x-5/5=6 | | x^2+30x=0.04x^3-1.2x^2+20x+50 | | 4x-2x^2=5 | | 0=16t^2+1454 | | 9j/5-2j | | X+(4x+32)=72 | | 13(20)+13(2)= | | 13(20+2)= | | 180-2x*x=180 | | 500+(12-8)= | | 27-4x=-7(1-3x) | | F(x)=-3x^2-6x-9 | | -7(x-2)+4x+3(2x-6)=8-(5-x)-3 | | 20log(x)=-3 | | p+2q=7 | | (5r+2)(r+2)=0 | | 2n/7=18 | | Lny=ln(x+1) |

Equations solver categories