x^2+16x-34=0

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Solution for x^2+16x-34=0 equation:


Simplifying
x2 + 16x + -34 = 0

Reorder the terms:
-34 + 16x + x2 = 0

Solving
-34 + 16x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '34' to each side of the equation.
-34 + 16x + 34 + x2 = 0 + 34

Reorder the terms:
-34 + 34 + 16x + x2 = 0 + 34

Combine like terms: -34 + 34 = 0
0 + 16x + x2 = 0 + 34
16x + x2 = 0 + 34

Combine like terms: 0 + 34 = 34
16x + x2 = 34

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 34 + 64

Reorder the terms:
64 + 16x + x2 = 34 + 64

Combine like terms: 34 + 64 = 98
64 + 16x + x2 = 98

Factor a perfect square on the left side:
(x + 8)(x + 8) = 98

Calculate the square root of the right side: 9.899494937

Break this problem into two subproblems by setting 
(x + 8) equal to 9.899494937 and -9.899494937.

Subproblem 1

x + 8 = 9.899494937 Simplifying x + 8 = 9.899494937 Reorder the terms: 8 + x = 9.899494937 Solving 8 + x = 9.899494937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 9.899494937 + -8 Combine like terms: 8 + -8 = 0 0 + x = 9.899494937 + -8 x = 9.899494937 + -8 Combine like terms: 9.899494937 + -8 = 1.899494937 x = 1.899494937 Simplifying x = 1.899494937

Subproblem 2

x + 8 = -9.899494937 Simplifying x + 8 = -9.899494937 Reorder the terms: 8 + x = -9.899494937 Solving 8 + x = -9.899494937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -9.899494937 + -8 Combine like terms: 8 + -8 = 0 0 + x = -9.899494937 + -8 x = -9.899494937 + -8 Combine like terms: -9.899494937 + -8 = -17.899494937 x = -17.899494937 Simplifying x = -17.899494937

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.899494937, -17.899494937}

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