12Z+12-Z^2-1=

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Solution for 12Z+12-Z^2-1= equation:


Simplifying
12Z + 12 + -1Z2 + -1 = 0

Reorder the terms:
12 + -1 + 12Z + -1Z2 = 0

Combine like terms: 12 + -1 = 11
11 + 12Z + -1Z2 = 0

Solving
11 + 12Z + -1Z2 = 0

Solving for variable 'Z'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-11 + -12Z + Z2 = 0

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + -12Z + 11 + Z2 = 0 + 11

Reorder the terms:
-11 + 11 + -12Z + Z2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -12Z + Z2 = 0 + 11
-12Z + Z2 = 0 + 11

Combine like terms: 0 + 11 = 11
-12Z + Z2 = 11

The Z term is -12Z.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12Z + 36 + Z2 = 11 + 36

Reorder the terms:
36 + -12Z + Z2 = 11 + 36

Combine like terms: 11 + 36 = 47
36 + -12Z + Z2 = 47

Factor a perfect square on the left side:
(Z + -6)(Z + -6) = 47

Calculate the square root of the right side: 6.8556546

Break this problem into two subproblems by setting 
(Z + -6) equal to 6.8556546 and -6.8556546.

Subproblem 1

Z + -6 = 6.8556546 Simplifying Z + -6 = 6.8556546 Reorder the terms: -6 + Z = 6.8556546 Solving -6 + Z = 6.8556546 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + Z = 6.8556546 + 6 Combine like terms: -6 + 6 = 0 0 + Z = 6.8556546 + 6 Z = 6.8556546 + 6 Combine like terms: 6.8556546 + 6 = 12.8556546 Z = 12.8556546 Simplifying Z = 12.8556546

Subproblem 2

Z + -6 = -6.8556546 Simplifying Z + -6 = -6.8556546 Reorder the terms: -6 + Z = -6.8556546 Solving -6 + Z = -6.8556546 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + Z = -6.8556546 + 6 Combine like terms: -6 + 6 = 0 0 + Z = -6.8556546 + 6 Z = -6.8556546 + 6 Combine like terms: -6.8556546 + 6 = -0.8556546 Z = -0.8556546 Simplifying Z = -0.8556546

Solution

The solution to the problem is based on the solutions from the subproblems. Z = {12.8556546, -0.8556546}

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