w^2-26w-47=0

Simple and best practice solution for w^2-26w-47=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^2-26w-47=0 equation:


Simplifying
w2 + -26w + -47 = 0

Reorder the terms:
-47 + -26w + w2 = 0

Solving
-47 + -26w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '47' to each side of the equation.
-47 + -26w + 47 + w2 = 0 + 47

Reorder the terms:
-47 + 47 + -26w + w2 = 0 + 47

Combine like terms: -47 + 47 = 0
0 + -26w + w2 = 0 + 47
-26w + w2 = 0 + 47

Combine like terms: 0 + 47 = 47
-26w + w2 = 47

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 = 47 + 169

Reorder the terms:
169 + -26w + w2 = 47 + 169

Combine like terms: 47 + 169 = 216
169 + -26w + w2 = 216

Factor a perfect square on the left side:
(w + -13)(w + -13) = 216

Calculate the square root of the right side: 14.696938457

Break this problem into two subproblems by setting 
(w + -13) equal to 14.696938457 and -14.696938457.

Subproblem 1

w + -13 = 14.696938457 Simplifying w + -13 = 14.696938457 Reorder the terms: -13 + w = 14.696938457 Solving -13 + w = 14.696938457 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 = 14.696938457 + 13 Combine like terms: -13 + 13 = 0 0 + w = 14.696938457 + 13 w = 14.696938457 + 13 Combine like terms: 14.696938457 + 13 = 27.696938457 w = 27.696938457 Simplifying w = 27.696938457

Subproblem 2

w + -13 = -14.696938457 Simplifying w + -13 = -14.696938457 Reorder the terms: -13 + w = -14.696938457 Solving -13 + w = -14.696938457 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 = -14.696938457 + 13 Combine like terms: -13 + 13 = 0 0 + w = -14.696938457 + 13 w = -14.696938457 + 13 Combine like terms: -14.696938457 + 13 = -1.696938457 w = -1.696938457 Simplifying w = -1.696938457

Solution

The solution to the problem is based on the solutions from the subproblems. w = {27.696938457, -1.696938457}

See similar equations:

| p^2-6p-49=0 | | 8x+7=8x*4 | | 2t-3+2=5 | | -4(y-3y)+6=-5(2y-y)+4+12y | | f^2-18f=1 | | 12a^2+12a-9=0 | | 3(5k+3)-6k=18 | | -4x^2-16x+12=0 | | -24=2s+(6s+16) | | 6(a-7)+15=3(a-6) | | 5x+5=54-2x | | x=25-4x | | 3k-8k+15=-5 | | k^2-6k-29=0 | | 3y^2+42y=-135 | | (4y+1)+(y-4)=12 | | 0.7x-0.9(5-x)=5.9 | | 4s= | | 3n=51 | | -8m-2m=60 | | s^2+22s=27 | | 7x-3(2-x)=9 | | 26=2(c-4) | | g^2+4g=11 | | 3n+3=51 | | ln(0.72)= | | 4(-174+23a+a^2)=0 | | 8y-4y+24=48 | | 3n-4=51 | | 4+9=15+3y-25 | | -3x^2-x+10=0 | | a-(7+2a)=2 |

Equations solver categories