5x^2-55x+150=1

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Solution for 5x^2-55x+150=1 equation:


Simplifying
5x2 + -55x + 150 = 1

Reorder the terms:
150 + -55x + 5x2 = 1

Solving
150 + -55x + 5x2 = 1

Solving for variable 'x'.

Reorder the terms:
150 + -1 + -55x + 5x2 = 1 + -1

Combine like terms: 150 + -1 = 149
149 + -55x + 5x2 = 1 + -1

Combine like terms: 1 + -1 = 0
149 + -55x + 5x2 = 0

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

Divide each side by '5'.
29.8 + -11x + x2 = 0

Move the constant term to the right:

Add '-29.8' to each side of the equation.
29.8 + -11x + -29.8 + x2 = 0 + -29.8

Reorder the terms:
29.8 + -29.8 + -11x + x2 = 0 + -29.8

Combine like terms: 29.8 + -29.8 = 0.0
0.0 + -11x + x2 = 0 + -29.8
-11x + x2 = 0 + -29.8

Combine like terms: 0 + -29.8 = -29.8
-11x + x2 = -29.8

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = -29.8 + 30.25

Reorder the terms:
30.25 + -11x + x2 = -29.8 + 30.25

Combine like terms: -29.8 + 30.25 = 0.45
30.25 + -11x + x2 = 0.45

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 0.45

Calculate the square root of the right side: 0.670820393

Break this problem into two subproblems by setting 
(x + -5.5) equal to 0.670820393 and -0.670820393.

Subproblem 1

x + -5.5 = 0.670820393 Simplifying x + -5.5 = 0.670820393 Reorder the terms: -5.5 + x = 0.670820393 Solving -5.5 + x = 0.670820393 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 0.670820393 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 0.670820393 + 5.5 x = 0.670820393 + 5.5 Combine like terms: 0.670820393 + 5.5 = 6.170820393 x = 6.170820393 Simplifying x = 6.170820393

Subproblem 2

x + -5.5 = -0.670820393 Simplifying x + -5.5 = -0.670820393 Reorder the terms: -5.5 + x = -0.670820393 Solving -5.5 + x = -0.670820393 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -0.670820393 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -0.670820393 + 5.5 x = -0.670820393 + 5.5 Combine like terms: -0.670820393 + 5.5 = 4.829179607 x = 4.829179607 Simplifying x = 4.829179607

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.170820393, 4.829179607}

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