-x^2+65x-450=0

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Solution for -x^2+65x-450=0 equation:


Simplifying
-1x2 + 65x + -450 = 0

Reorder the terms:
-450 + 65x + -1x2 = 0

Solving
-450 + 65x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
450 + -65x + x2 = 0

Move the constant term to the right:

Add '-450' to each side of the equation.
450 + -65x + -450 + x2 = 0 + -450

Reorder the terms:
450 + -450 + -65x + x2 = 0 + -450

Combine like terms: 450 + -450 = 0
0 + -65x + x2 = 0 + -450
-65x + x2 = 0 + -450

Combine like terms: 0 + -450 = -450
-65x + x2 = -450

The x term is -65x.  Take half its coefficient (-32.5).
Square it (1056.25) and add it to both sides.

Add '1056.25' to each side of the equation.
-65x + 1056.25 + x2 = -450 + 1056.25

Reorder the terms:
1056.25 + -65x + x2 = -450 + 1056.25

Combine like terms: -450 + 1056.25 = 606.25
1056.25 + -65x + x2 = 606.25

Factor a perfect square on the left side:
(x + -32.5)(x + -32.5) = 606.25

Calculate the square root of the right side: 24.622144504

Break this problem into two subproblems by setting 
(x + -32.5) equal to 24.622144504 and -24.622144504.

Subproblem 1

x + -32.5 = 24.622144504 Simplifying x + -32.5 = 24.622144504 Reorder the terms: -32.5 + x = 24.622144504 Solving -32.5 + x = 24.622144504 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32.5' to each side of the equation. -32.5 + 32.5 + x = 24.622144504 + 32.5 Combine like terms: -32.5 + 32.5 = 0.0 0.0 + x = 24.622144504 + 32.5 x = 24.622144504 + 32.5 Combine like terms: 24.622144504 + 32.5 = 57.122144504 x = 57.122144504 Simplifying x = 57.122144504

Subproblem 2

x + -32.5 = -24.622144504 Simplifying x + -32.5 = -24.622144504 Reorder the terms: -32.5 + x = -24.622144504 Solving -32.5 + x = -24.622144504 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32.5' to each side of the equation. -32.5 + 32.5 + x = -24.622144504 + 32.5 Combine like terms: -32.5 + 32.5 = 0.0 0.0 + x = -24.622144504 + 32.5 x = -24.622144504 + 32.5 Combine like terms: -24.622144504 + 32.5 = 7.877855496 x = 7.877855496 Simplifying x = 7.877855496

Solution

The solution to the problem is based on the solutions from the subproblems. x = {57.122144504, 7.877855496}

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