29=-x^2+56x+70

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Solution for 29=-x^2+56x+70 equation:


Simplifying
29 = -1x2 + 56x + 70

Reorder the terms:
29 = 70 + 56x + -1x2

Solving
29 = 70 + 56x + -1x2

Solving for variable 'x'.

Combine like terms: 29 + -70 = -41
-41 + -56x + x2 = 70 + 56x + -1x2 + -70 + -56x + x2

Reorder the terms:
-41 + -56x + x2 = 70 + -70 + 56x + -56x + -1x2 + x2

Combine like terms: 70 + -70 = 0
-41 + -56x + x2 = 0 + 56x + -56x + -1x2 + x2
-41 + -56x + x2 = 56x + -56x + -1x2 + x2

Combine like terms: 56x + -56x = 0
-41 + -56x + x2 = 0 + -1x2 + x2
-41 + -56x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-41 + -56x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '41' to each side of the equation.
-41 + -56x + 41 + x2 = 0 + 41

Reorder the terms:
-41 + 41 + -56x + x2 = 0 + 41

Combine like terms: -41 + 41 = 0
0 + -56x + x2 = 0 + 41
-56x + x2 = 0 + 41

Combine like terms: 0 + 41 = 41
-56x + x2 = 41

The x term is -56x.  Take half its coefficient (-28).
Square it (784) and add it to both sides.

Add '784' to each side of the equation.
-56x + 784 + x2 = 41 + 784

Reorder the terms:
784 + -56x + x2 = 41 + 784

Combine like terms: 41 + 784 = 825
784 + -56x + x2 = 825

Factor a perfect square on the left side:
(x + -28)(x + -28) = 825

Calculate the square root of the right side: 28.722813233

Break this problem into two subproblems by setting 
(x + -28) equal to 28.722813233 and -28.722813233.

Subproblem 1

x + -28 = 28.722813233 Simplifying x + -28 = 28.722813233 Reorder the terms: -28 + x = 28.722813233 Solving -28 + x = 28.722813233 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + x = 28.722813233 + 28 Combine like terms: -28 + 28 = 0 0 + x = 28.722813233 + 28 x = 28.722813233 + 28 Combine like terms: 28.722813233 + 28 = 56.722813233 x = 56.722813233 Simplifying x = 56.722813233

Subproblem 2

x + -28 = -28.722813233 Simplifying x + -28 = -28.722813233 Reorder the terms: -28 + x = -28.722813233 Solving -28 + x = -28.722813233 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + x = -28.722813233 + 28 Combine like terms: -28 + 28 = 0 0 + x = -28.722813233 + 28 x = -28.722813233 + 28 Combine like terms: -28.722813233 + 28 = -0.722813233 x = -0.722813233 Simplifying x = -0.722813233

Solution

The solution to the problem is based on the solutions from the subproblems. x = {56.722813233, -0.722813233}

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