(w+7)(w+7)-54=0

Simple and best practice solution for (w+7)(w+7)-54=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+7)(w+7)-54=0 equation:


Simplifying
(w + 7)(w + 7) + -54 = 0

Reorder the terms:
(7 + w)(w + 7) + -54 = 0

Reorder the terms:
(7 + w)(7 + w) + -54 = 0

Multiply (7 + w) * (7 + w)
(7(7 + w) + w(7 + w)) + -54 = 0
((7 * 7 + w * 7) + w(7 + w)) + -54 = 0
((49 + 7w) + w(7 + w)) + -54 = 0
(49 + 7w + (7 * w + w * w)) + -54 = 0
(49 + 7w + (7w + w2)) + -54 = 0

Combine like terms: 7w + 7w = 14w
(49 + 14w + w2) + -54 = 0

Reorder the terms:
49 + -54 + 14w + w2 = 0

Combine like terms: 49 + -54 = -5
-5 + 14w + w2 = 0

Solving
-5 + 14w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + 14w + 5 + w2 = 0 + 5

Reorder the terms:
-5 + 5 + 14w + w2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 14w + w2 = 0 + 5
14w + w2 = 0 + 5

Combine like terms: 0 + 5 = 5
14w + w2 = 5

The w term is 14w.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14w + 49 + w2 = 5 + 49

Reorder the terms:
49 + 14w + w2 = 5 + 49

Combine like terms: 5 + 49 = 54
49 + 14w + w2 = 54

Factor a perfect square on the left side:
(w + 7)(w + 7) = 54

Calculate the square root of the right side: 7.348469228

Break this problem into two subproblems by setting 
(w + 7) equal to 7.348469228 and -7.348469228.

Subproblem 1

w + 7 = 7.348469228 Simplifying w + 7 = 7.348469228 Reorder the terms: 7 + w = 7.348469228 Solving 7 + w = 7.348469228 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + w = 7.348469228 + -7 Combine like terms: 7 + -7 = 0 0 + w = 7.348469228 + -7 w = 7.348469228 + -7 Combine like terms: 7.348469228 + -7 = 0.348469228 w = 0.348469228 Simplifying w = 0.348469228

Subproblem 2

w + 7 = -7.348469228 Simplifying w + 7 = -7.348469228 Reorder the terms: 7 + w = -7.348469228 Solving 7 + w = -7.348469228 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + w = -7.348469228 + -7 Combine like terms: 7 + -7 = 0 0 + w = -7.348469228 + -7 w = -7.348469228 + -7 Combine like terms: -7.348469228 + -7 = -14.348469228 w = -14.348469228 Simplifying w = -14.348469228

Solution

The solution to the problem is based on the solutions from the subproblems. w = {0.348469228, -14.348469228}

See similar equations:

| 5a-42=3a-8 | | x+5y+7z=2016 | | 5w-26=w+18 | | 4y^2+35y-71=0 | | -5(3x-1)+5x-4=-99 | | u+16=3u | | 2x-50=8 | | 30-7k=-8[3(k-3)-3] | | 2a+92=6a+28 | | x-9y=53 | | y3z6/y5z6 | | q-21=2q-53 | | 6=-6x(-2)+b | | a+74=180 | | 3x=9+3x | | c+14=5c-54 | | 6x-32=x+23 | | 2(2x+9)=22 | | 7p-96=p | | 2(5x-10)=38 | | 5/16x35/48 | | 2x-60=8 | | 2(2x+1)=38 | | y^2-20y=x^2 | | -55=11x+77 | | -55-11x=33 | | 514x+2y=66 | | cos(z)=5i | | -8s-35=-3 | | (15t-6)/6 | | 15t-6/6 | | (x-a)(x-7)=0 |

Equations solver categories