22W^2-8W=9

Simple and best practice solution for 22W^2-8W=9 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 22W^2-8W=9 equation:


Simplifying
22W2 + -8W = 9

Reorder the terms:
-8W + 22W2 = 9

Solving
-8W + 22W2 = 9

Solving for variable 'W'.

Reorder the terms:
-9 + -8W + 22W2 = 9 + -9

Combine like terms: 9 + -9 = 0
-9 + -8W + 22W2 = 0

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

Divide each side by '22'.
-0.4090909091 + -0.3636363636W + W2 = 0

Move the constant term to the right:

Add '0.4090909091' to each side of the equation.
-0.4090909091 + -0.3636363636W + 0.4090909091 + W2 = 0 + 0.4090909091

Reorder the terms:
-0.4090909091 + 0.4090909091 + -0.3636363636W + W2 = 0 + 0.4090909091

Combine like terms: -0.4090909091 + 0.4090909091 = 0.0000000000
0.0000000000 + -0.3636363636W + W2 = 0 + 0.4090909091
-0.3636363636W + W2 = 0 + 0.4090909091

Combine like terms: 0 + 0.4090909091 = 0.4090909091
-0.3636363636W + W2 = 0.4090909091

The W term is -0.3636363636W.  Take half its coefficient (-0.1818181818).
Square it (0.03305785123) and add it to both sides.

Add '0.03305785123' to each side of the equation.
-0.3636363636W + 0.03305785123 + W2 = 0.4090909091 + 0.03305785123

Reorder the terms:
0.03305785123 + -0.3636363636W + W2 = 0.4090909091 + 0.03305785123

Combine like terms: 0.4090909091 + 0.03305785123 = 0.44214876033
0.03305785123 + -0.3636363636W + W2 = 0.44214876033

Factor a perfect square on the left side:
(W + -0.1818181818)(W + -0.1818181818) = 0.44214876033

Calculate the square root of the right side: 0.664942674

Break this problem into two subproblems by setting 
(W + -0.1818181818) equal to 0.664942674 and -0.664942674.

Subproblem 1

W + -0.1818181818 = 0.664942674 Simplifying W + -0.1818181818 = 0.664942674 Reorder the terms: -0.1818181818 + W = 0.664942674 Solving -0.1818181818 + W = 0.664942674 Solving for variable 'W'. Move all terms containing W to the left, all other terms to the right. Add '0.1818181818' to each side of the equation. -0.1818181818 + 0.1818181818 + W = 0.664942674 + 0.1818181818 Combine like terms: -0.1818181818 + 0.1818181818 = 0.0000000000 0.0000000000 + W = 0.664942674 + 0.1818181818 W = 0.664942674 + 0.1818181818 Combine like terms: 0.664942674 + 0.1818181818 = 0.8467608558 W = 0.8467608558 Simplifying W = 0.8467608558

Subproblem 2

W + -0.1818181818 = -0.664942674 Simplifying W + -0.1818181818 = -0.664942674 Reorder the terms: -0.1818181818 + W = -0.664942674 Solving -0.1818181818 + W = -0.664942674 Solving for variable 'W'. Move all terms containing W to the left, all other terms to the right. Add '0.1818181818' to each side of the equation. -0.1818181818 + 0.1818181818 + W = -0.664942674 + 0.1818181818 Combine like terms: -0.1818181818 + 0.1818181818 = 0.0000000000 0.0000000000 + W = -0.664942674 + 0.1818181818 W = -0.664942674 + 0.1818181818 Combine like terms: -0.664942674 + 0.1818181818 = -0.4831244922 W = -0.4831244922 Simplifying W = -0.4831244922

Solution

The solution to the problem is based on the solutions from the subproblems. W = {0.8467608558, -0.4831244922}

See similar equations:

| 2-8(4-10k)=30 | | 4(1.75y+2)=4(7-0.75y) | | x(2x+4.5)=2(2x-1)+4x | | 3-8(4/10)=-30 | | X=925+-5x | | x=-7+2 | | 20.88=h/145 | | 7-x=-1/26x-2*3 | | 145=h/20.88 | | X=5(180-x)+25 | | 3=d/205 | | (6x+y^2)dx+y(3x-2y)dy=0 | | -2(-6+b)+2=14 | | 180-x=180-137 | | (x*x)+3x-128=0 | | (x/2)-18=53 | | 3/8/-5/18 | | 12*y-10=2y | | abs(x)+abs(1-x)+2abs(y)=1 | | 6.5m+12.4=10.75m-8.85 | | 3x/4=x-8 | | 4x-10=20-6x | | 5+3(10x-2)=89 | | 5s+6t=51 | | 10x-650+50=250 | | 2s+3t=24 | | (2x-5)(3x^2-4)= | | 3-1=14 | | 2x+29=90 | | 2y+3x=15.5 | | ln12x^2/3y | | X+29+x=90 |

Equations solver categories