200W^2+W-20=0

Simple and best practice solution for 200W^2+W-20=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 200W^2+W-20=0 equation:


Simplifying
200W2 + W + -20 = 0

Reorder the terms:
-20 + W + 200W2 = 0

Solving
-20 + W + 200W2 = 0

Solving for variable 'W'.

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

Divide each side by '200'.
-0.1 + 0.005W + W2 = 0

Move the constant term to the right:

Add '0.1' to each side of the equation.
-0.1 + 0.005W + 0.1 + W2 = 0 + 0.1

Reorder the terms:
-0.1 + 0.1 + 0.005W + W2 = 0 + 0.1

Combine like terms: -0.1 + 0.1 = 0.0
0.0 + 0.005W + W2 = 0 + 0.1
0.005W + W2 = 0 + 0.1

Combine like terms: 0 + 0.1 = 0.1
0.005W + W2 = 0.1

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

Add '0.25' to each side of the equation.
0.005W + 0.25 + W2 = 0.1 + 0.25

Reorder the terms:
0.25 + 0.005W + W2 = 0.1 + 0.25

Combine like terms: 0.1 + 0.25 = 0.35
0.25 + 0.005W + W2 = 0.35

Factor a perfect square on the left side:
(W + 0.5)(W + 0.5) = 0.35

Calculate the square root of the right side: 0.591607978

Break this problem into two subproblems by setting 
(W + 0.5) equal to 0.591607978 and -0.591607978.

Subproblem 1

W + 0.5 = 0.591607978 Simplifying W + 0.5 = 0.591607978 Reorder the terms: 0.5 + W = 0.591607978 Solving 0.5 + W = 0.591607978 Solving for variable 'W'. Move all terms containing W to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + W = 0.591607978 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + W = 0.591607978 + -0.5 W = 0.591607978 + -0.5 Combine like terms: 0.591607978 + -0.5 = 0.091607978 W = 0.091607978 Simplifying W = 0.091607978

Subproblem 2

W + 0.5 = -0.591607978 Simplifying W + 0.5 = -0.591607978 Reorder the terms: 0.5 + W = -0.591607978 Solving 0.5 + W = -0.591607978 Solving for variable 'W'. Move all terms containing W to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + W = -0.591607978 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + W = -0.591607978 + -0.5 W = -0.591607978 + -0.5 Combine like terms: -0.591607978 + -0.5 = -1.091607978 W = -1.091607978 Simplifying W = -1.091607978

Solution

The solution to the problem is based on the solutions from the subproblems. W = {0.091607978, -1.091607978}

See similar equations:

| 256=18-x | | 15a+16a+7a= | | 7x-27=-22 | | 7x+2y=190 | | 2z-8=7z+9 | | 18=.32w | | (s-8)+5=10 | | 5-x-2=5 | | 9x+8=9(x+1) | | 8-2x=7+3x | | 3x+6y=304 | | y=-9x+15 | | 8/8=13/8 | | 7x+1=3x-35 | | 5=.05w | | 16+8b=4(5b-5) | | (x(-7+i))(x(-7-i))(x+2)=y | | n/9-4=4 | | 6xy+8xy= | | (4x+3)-(9x+5)=0 | | 4x^2+13x-16=2-8x | | (x(-7+i))(x(-7-i))(x+2)=0 | | 39.2=p*112 | | 6n+18=(-2n)+2 | | 8-37a-15a^2=0 | | 14=y+13 | | -5.4=1 | | 2-6d=14 | | .11-x=.29 | | -4p^2-6p+15=0 | | n=-1.8 | | 2(x-1)-3x=-2 |

Equations solver categories