(z+10)(z+10)=24

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Solution for (z+10)(z+10)=24 equation:


Simplifying
(z + 10)(z + 10) = 24

Reorder the terms:
(10 + z)(z + 10) = 24

Reorder the terms:
(10 + z)(10 + z) = 24

Multiply (10 + z) * (10 + z)
(10(10 + z) + z(10 + z)) = 24
((10 * 10 + z * 10) + z(10 + z)) = 24
((100 + 10z) + z(10 + z)) = 24
(100 + 10z + (10 * z + z * z)) = 24
(100 + 10z + (10z + z2)) = 24

Combine like terms: 10z + 10z = 20z
(100 + 20z + z2) = 24

Solving
100 + 20z + z2 = 24

Solving for variable 'z'.

Reorder the terms:
100 + -24 + 20z + z2 = 24 + -24

Combine like terms: 100 + -24 = 76
76 + 20z + z2 = 24 + -24

Combine like terms: 24 + -24 = 0
76 + 20z + z2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-76' to each side of the equation.
76 + 20z + -76 + z2 = 0 + -76

Reorder the terms:
76 + -76 + 20z + z2 = 0 + -76

Combine like terms: 76 + -76 = 0
0 + 20z + z2 = 0 + -76
20z + z2 = 0 + -76

Combine like terms: 0 + -76 = -76
20z + z2 = -76

The z term is 20z.  Take half its coefficient (10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
20z + 100 + z2 = -76 + 100

Reorder the terms:
100 + 20z + z2 = -76 + 100

Combine like terms: -76 + 100 = 24
100 + 20z + z2 = 24

Factor a perfect square on the left side:
(z + 10)(z + 10) = 24

Calculate the square root of the right side: 4.898979486

Break this problem into two subproblems by setting 
(z + 10) equal to 4.898979486 and -4.898979486.

Subproblem 1

z + 10 = 4.898979486 Simplifying z + 10 = 4.898979486 Reorder the terms: 10 + z = 4.898979486 Solving 10 + z = 4.898979486 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + z = 4.898979486 + -10 Combine like terms: 10 + -10 = 0 0 + z = 4.898979486 + -10 z = 4.898979486 + -10 Combine like terms: 4.898979486 + -10 = -5.101020514 z = -5.101020514 Simplifying z = -5.101020514

Subproblem 2

z + 10 = -4.898979486 Simplifying z + 10 = -4.898979486 Reorder the terms: 10 + z = -4.898979486 Solving 10 + z = -4.898979486 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + z = -4.898979486 + -10 Combine like terms: 10 + -10 = 0 0 + z = -4.898979486 + -10 z = -4.898979486 + -10 Combine like terms: -4.898979486 + -10 = -14.898979486 z = -14.898979486 Simplifying z = -14.898979486

Solution

The solution to the problem is based on the solutions from the subproblems. z = {-5.101020514, -14.898979486}

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