w^2-26w=-31

Simple and best practice solution for w^2-26w=-31 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^2-26w=-31 equation:


Simplifying
w2 + -26w = -31

Reorder the terms:
-26w + w2 = -31

Solving
-26w + w2 = -31

Solving for variable 'w'.

Reorder the terms:
31 + -26w + w2 = -31 + 31

Combine like terms: -31 + 31 = 0
31 + -26w + w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-31' to each side of the equation.
31 + -26w + -31 + w2 = 0 + -31

Reorder the terms:
31 + -31 + -26w + w2 = 0 + -31

Combine like terms: 31 + -31 = 0
0 + -26w + w2 = 0 + -31
-26w + w2 = 0 + -31

Combine like terms: 0 + -31 = -31
-26w + w2 = -31

The w term is -26w.  Take half its coefficient (-13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
-26w + 169 + w2 = -31 + 169

Reorder the terms:
169 + -26w + w2 = -31 + 169

Combine like terms: -31 + 169 = 138
169 + -26w + w2 = 138

Factor a perfect square on the left side:
(w + -13)(w + -13) = 138

Calculate the square root of the right side: 11.747340124

Break this problem into two subproblems by setting 
(w + -13) equal to 11.747340124 and -11.747340124.

Subproblem 1

w + -13 = 11.747340124 Simplifying w + -13 = 11.747340124 Reorder the terms: -13 + w = 11.747340124 Solving -13 + w = 11.747340124 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + w = 11.747340124 + 13 Combine like terms: -13 + 13 = 0 0 + w = 11.747340124 + 13 w = 11.747340124 + 13 Combine like terms: 11.747340124 + 13 = 24.747340124 w = 24.747340124 Simplifying w = 24.747340124

Subproblem 2

w + -13 = -11.747340124 Simplifying w + -13 = -11.747340124 Reorder the terms: -13 + w = -11.747340124 Solving -13 + w = -11.747340124 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + w = -11.747340124 + 13 Combine like terms: -13 + 13 = 0 0 + w = -11.747340124 + 13 w = -11.747340124 + 13 Combine like terms: -11.747340124 + 13 = 1.252659876 w = 1.252659876 Simplifying w = 1.252659876

Solution

The solution to the problem is based on the solutions from the subproblems. w = {24.747340124, 1.252659876}

See similar equations:

| 70+20n=250 | | 210+0.25x=395 | | -33-(-89)=m | | -(5x+3)=-33 | | a=-63+(-87) | | 2t^2-32t+94=0 | | x^(1/3)-x^2 | | 8x+4y=43 | | log(x)13=3 | | 2=22+2 | | 3x(1/8) | | 7x-5(7-x)=13 | | y=27-(-28) | | x^1/3-x^2=0 | | 48=4/3x | | 3n+4=2n-6 | | m^2+22m-7=0 | | 14+(-72)=z | | 4(8c-1)-8=30c+4 | | -62=-8(3n+4)-6n | | 12b^2-13b+3=0 | | 4(7b+8)=2(13b+28) | | Y=-.005x^2+.05x | | 4(8c-1)-12=30c+4 | | (x-4)(x^2+15x+14)=0 | | 2v^2+28v=30 | | -4f^2+8f+172=0 | | 6s^3t^3-30s^2t^4= | | 7(8-2x)=28 | | Y=1+6x+1 | | z^2-14z+42=0 | | ln(2x+7)+ln(x-5)-2lnx=0 |

Equations solver categories