r^2-34r+8=0

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Solution for r^2-34r+8=0 equation:


Simplifying
r2 + -34r + 8 = 0

Reorder the terms:
8 + -34r + r2 = 0

Solving
8 + -34r + r2 = 0

Solving for variable 'r'.

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -34r + -8 + r2 = 0 + -8

Reorder the terms:
8 + -8 + -34r + r2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -34r + r2 = 0 + -8
-34r + r2 = 0 + -8

Combine like terms: 0 + -8 = -8
-34r + r2 = -8

The r term is -34r.  Take half its coefficient (-17).
Square it (289) and add it to both sides.

Add '289' to each side of the equation.
-34r + 289 + r2 = -8 + 289

Reorder the terms:
289 + -34r + r2 = -8 + 289

Combine like terms: -8 + 289 = 281
289 + -34r + r2 = 281

Factor a perfect square on the left side:
(r + -17)(r + -17) = 281

Calculate the square root of the right side: 16.763054614

Break this problem into two subproblems by setting 
(r + -17) equal to 16.763054614 and -16.763054614.

Subproblem 1

r + -17 = 16.763054614 Simplifying r + -17 = 16.763054614 Reorder the terms: -17 + r = 16.763054614 Solving -17 + r = 16.763054614 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '17' to each side of the equation. -17 + 17 + r = 16.763054614 + 17 Combine like terms: -17 + 17 = 0 0 + r = 16.763054614 + 17 r = 16.763054614 + 17 Combine like terms: 16.763054614 + 17 = 33.763054614 r = 33.763054614 Simplifying r = 33.763054614

Subproblem 2

r + -17 = -16.763054614 Simplifying r + -17 = -16.763054614 Reorder the terms: -17 + r = -16.763054614 Solving -17 + r = -16.763054614 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '17' to each side of the equation. -17 + 17 + r = -16.763054614 + 17 Combine like terms: -17 + 17 = 0 0 + r = -16.763054614 + 17 r = -16.763054614 + 17 Combine like terms: -16.763054614 + 17 = 0.236945386 r = 0.236945386 Simplifying r = 0.236945386

Solution

The solution to the problem is based on the solutions from the subproblems. r = {33.763054614, 0.236945386}

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