2x^2-60x+600=762.50

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Solution for 2x^2-60x+600=762.50 equation:


Simplifying
2x2 + -60x + 600 = 762.50

Reorder the terms:
600 + -60x + 2x2 = 762.50

Solving
600 + -60x + 2x2 = 762.50

Solving for variable 'x'.

Reorder the terms:
600 + -762.50 + -60x + 2x2 = 762.50 + -762.50

Combine like terms: 600 + -762.50 = -162.5
-162.5 + -60x + 2x2 = 762.50 + -762.50

Combine like terms: 762.50 + -762.50 = 0.00
-162.5 + -60x + 2x2 = 0.00

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

Divide each side by '2'.
-81.25 + -30x + x2 = 0.00

Move the constant term to the right:

Add '81.25' to each side of the equation.
-81.25 + -30x + 81.25 + x2 = 0.00 + 81.25

Reorder the terms:
-81.25 + 81.25 + -30x + x2 = 0.00 + 81.25

Combine like terms: -81.25 + 81.25 = 0.00
0.00 + -30x + x2 = 0.00 + 81.25
-30x + x2 = 0.00 + 81.25

Combine like terms: 0.00 + 81.25 = 81.25
-30x + x2 = 81.25

The x term is -30x.  Take half its coefficient (-15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
-30x + 225 + x2 = 81.25 + 225

Reorder the terms:
225 + -30x + x2 = 81.25 + 225

Combine like terms: 81.25 + 225 = 306.25
225 + -30x + x2 = 306.25

Factor a perfect square on the left side:
(x + -15)(x + -15) = 306.25

Calculate the square root of the right side: 17.5

Break this problem into two subproblems by setting 
(x + -15) equal to 17.5 and -17.5.

Subproblem 1

x + -15 = 17.5 Simplifying x + -15 = 17.5 Reorder the terms: -15 + x = 17.5 Solving -15 + x = 17.5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = 17.5 + 15 Combine like terms: -15 + 15 = 0 0 + x = 17.5 + 15 x = 17.5 + 15 Combine like terms: 17.5 + 15 = 32.5 x = 32.5 Simplifying x = 32.5

Subproblem 2

x + -15 = -17.5 Simplifying x + -15 = -17.5 Reorder the terms: -15 + x = -17.5 Solving -15 + x = -17.5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = -17.5 + 15 Combine like terms: -15 + 15 = 0 0 + x = -17.5 + 15 x = -17.5 + 15 Combine like terms: -17.5 + 15 = -2.5 x = -2.5 Simplifying x = -2.5

Solution

The solution to the problem is based on the solutions from the subproblems. x = {32.5, -2.5}

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