2x^2+60x=319

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Solution for 2x^2+60x=319 equation:


Simplifying
2x2 + 60x = 319

Reorder the terms:
60x + 2x2 = 319

Solving
60x + 2x2 = 319

Solving for variable 'x'.

Reorder the terms:
-319 + 60x + 2x2 = 319 + -319

Combine like terms: 319 + -319 = 0
-319 + 60x + 2x2 = 0

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

Divide each side by '2'.
-159.5 + 30x + x2 = 0

Move the constant term to the right:

Add '159.5' to each side of the equation.
-159.5 + 30x + 159.5 + x2 = 0 + 159.5

Reorder the terms:
-159.5 + 159.5 + 30x + x2 = 0 + 159.5

Combine like terms: -159.5 + 159.5 = 0.0
0.0 + 30x + x2 = 0 + 159.5
30x + x2 = 0 + 159.5

Combine like terms: 0 + 159.5 = 159.5
30x + x2 = 159.5

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 = 159.5 + 225

Reorder the terms:
225 + 30x + x2 = 159.5 + 225

Combine like terms: 159.5 + 225 = 384.5
225 + 30x + x2 = 384.5

Factor a perfect square on the left side:
(x + 15)(x + 15) = 384.5

Calculate the square root of the right side: 19.608671551

Break this problem into two subproblems by setting 
(x + 15) equal to 19.608671551 and -19.608671551.

Subproblem 1

x + 15 = 19.608671551 Simplifying x + 15 = 19.608671551 Reorder the terms: 15 + x = 19.608671551 Solving 15 + x = 19.608671551 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 = 19.608671551 + -15 Combine like terms: 15 + -15 = 0 0 + x = 19.608671551 + -15 x = 19.608671551 + -15 Combine like terms: 19.608671551 + -15 = 4.608671551 x = 4.608671551 Simplifying x = 4.608671551

Subproblem 2

x + 15 = -19.608671551 Simplifying x + 15 = -19.608671551 Reorder the terms: 15 + x = -19.608671551 Solving 15 + x = -19.608671551 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 = -19.608671551 + -15 Combine like terms: 15 + -15 = 0 0 + x = -19.608671551 + -15 x = -19.608671551 + -15 Combine like terms: -19.608671551 + -15 = -34.608671551 x = -34.608671551 Simplifying x = -34.608671551

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.608671551, -34.608671551}

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