-w+21w^2-104=0

Simple and best practice solution for -w+21w^2-104=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 -w+21w^2-104=0 equation:


Simplifying
-1w + 21w2 + -104 = 0

Reorder the terms:
-104 + -1w + 21w2 = 0

Solving
-104 + -1w + 21w2 = 0

Solving for variable 'w'.

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

Divide each side by '21'.
-4.952380952 + -0.04761904762w + w2 = 0

Move the constant term to the right:

Add '4.952380952' to each side of the equation.
-4.952380952 + -0.04761904762w + 4.952380952 + w2 = 0 + 4.952380952

Reorder the terms:
-4.952380952 + 4.952380952 + -0.04761904762w + w2 = 0 + 4.952380952

Combine like terms: -4.952380952 + 4.952380952 = 0.000000000
0.000000000 + -0.04761904762w + w2 = 0 + 4.952380952
-0.04761904762w + w2 = 0 + 4.952380952

Combine like terms: 0 + 4.952380952 = 4.952380952
-0.04761904762w + w2 = 4.952380952

The w term is -0.04761904762w.  Take half its coefficient (-0.02380952381).
Square it (0.0005668934241) and add it to both sides.

Add '0.0005668934241' to each side of the equation.
-0.04761904762w + 0.0005668934241 + w2 = 4.952380952 + 0.0005668934241

Reorder the terms:
0.0005668934241 + -0.04761904762w + w2 = 4.952380952 + 0.0005668934241

Combine like terms: 4.952380952 + 0.0005668934241 = 4.9529478454241
0.0005668934241 + -0.04761904762w + w2 = 4.9529478454241

Factor a perfect square on the left side:
(w + -0.02380952381)(w + -0.02380952381) = 4.9529478454241

Calculate the square root of the right side: 2.225521927

Break this problem into two subproblems by setting 
(w + -0.02380952381) equal to 2.225521927 and -2.225521927.

Subproblem 1

w + -0.02380952381 = 2.225521927 Simplifying w + -0.02380952381 = 2.225521927 Reorder the terms: -0.02380952381 + w = 2.225521927 Solving -0.02380952381 + w = 2.225521927 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.02380952381' to each side of the equation. -0.02380952381 + 0.02380952381 + w = 2.225521927 + 0.02380952381 Combine like terms: -0.02380952381 + 0.02380952381 = 0.00000000000 0.00000000000 + w = 2.225521927 + 0.02380952381 w = 2.225521927 + 0.02380952381 Combine like terms: 2.225521927 + 0.02380952381 = 2.24933145081 w = 2.24933145081 Simplifying w = 2.24933145081

Subproblem 2

w + -0.02380952381 = -2.225521927 Simplifying w + -0.02380952381 = -2.225521927 Reorder the terms: -0.02380952381 + w = -2.225521927 Solving -0.02380952381 + w = -2.225521927 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.02380952381' to each side of the equation. -0.02380952381 + 0.02380952381 + w = -2.225521927 + 0.02380952381 Combine like terms: -0.02380952381 + 0.02380952381 = 0.00000000000 0.00000000000 + w = -2.225521927 + 0.02380952381 w = -2.225521927 + 0.02380952381 Combine like terms: -2.225521927 + 0.02380952381 = -2.20171240319 w = -2.20171240319 Simplifying w = -2.20171240319

Solution

The solution to the problem is based on the solutions from the subproblems. w = {2.24933145081, -2.20171240319}

See similar equations:

| 6/a=3/1 | | -w+21wx-104=0 | | 3*2+4(9+1)= | | 5/8x=30 | | -15+4/5p=9 | | 4.25/20.6 | | (-15p-1)+24+2(5+5p)=0 | | -w+21w-104=0 | | 3x+6y=18forx | | 4/9x=-14 | | x-3/5a=2c/3 | | 3/n=-15 | | 5x+3y=48xy-56y | | (-3)+(-5)= | | m+6.47+.7m=-3.8 | | x^2+31x-102=0 | | 3/z-6=15 | | x+(x+10)=144 | | 14(V+2)-2V=3(4v+3)-12 | | 5y^2+5y^3=15y^2 | | 3.5-2.75= | | 12x-28y=84 | | 31/2-23/4= | | 2x^2+12x+40=180 | | w=-3p+9 | | 7+3=34 | | 3x+3+2x+3= | | y^2-4y+4=36 | | 1=x+7 | | .40x+.05(14-x)=.10(35) | | 19w+3= | | 0+1=-1.5(x-1) |

Equations solver categories