x^2-5x-62=0

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Solution for x^2-5x-62=0 equation:


Simplifying
x2 + -5x + -62 = 0

Reorder the terms:
-62 + -5x + x2 = 0

Solving
-62 + -5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '62' to each side of the equation.
-62 + -5x + 62 + x2 = 0 + 62

Reorder the terms:
-62 + 62 + -5x + x2 = 0 + 62

Combine like terms: -62 + 62 = 0
0 + -5x + x2 = 0 + 62
-5x + x2 = 0 + 62

Combine like terms: 0 + 62 = 62
-5x + x2 = 62

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = 62 + 6.25

Reorder the terms:
6.25 + -5x + x2 = 62 + 6.25

Combine like terms: 62 + 6.25 = 68.25
6.25 + -5x + x2 = 68.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 68.25

Calculate the square root of the right side: 8.261355821

Break this problem into two subproblems by setting 
(x + -2.5) equal to 8.261355821 and -8.261355821.

Subproblem 1

x + -2.5 = 8.261355821 Simplifying x + -2.5 = 8.261355821 Reorder the terms: -2.5 + x = 8.261355821 Solving -2.5 + x = 8.261355821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 8.261355821 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 8.261355821 + 2.5 x = 8.261355821 + 2.5 Combine like terms: 8.261355821 + 2.5 = 10.761355821 x = 10.761355821 Simplifying x = 10.761355821

Subproblem 2

x + -2.5 = -8.261355821 Simplifying x + -2.5 = -8.261355821 Reorder the terms: -2.5 + x = -8.261355821 Solving -2.5 + x = -8.261355821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -8.261355821 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -8.261355821 + 2.5 x = -8.261355821 + 2.5 Combine like terms: -8.261355821 + 2.5 = -5.761355821 x = -5.761355821 Simplifying x = -5.761355821

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.761355821, -5.761355821}

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