3x^2-50x=150

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Solution for 3x^2-50x=150 equation:


Simplifying
3x2 + -50x = 150

Reorder the terms:
-50x + 3x2 = 150

Solving
-50x + 3x2 = 150

Solving for variable 'x'.

Reorder the terms:
-150 + -50x + 3x2 = 150 + -150

Combine like terms: 150 + -150 = 0
-150 + -50x + 3x2 = 0

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

Divide each side by '3'.
-50 + -16.66666667x + x2 = 0

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + -16.66666667x + 50 + x2 = 0 + 50

Reorder the terms:
-50 + 50 + -16.66666667x + x2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + -16.66666667x + x2 = 0 + 50
-16.66666667x + x2 = 0 + 50

Combine like terms: 0 + 50 = 50
-16.66666667x + x2 = 50

The x term is -16.66666667x.  Take half its coefficient (-8.333333335).
Square it (69.44444447) and add it to both sides.

Add '69.44444447' to each side of the equation.
-16.66666667x + 69.44444447 + x2 = 50 + 69.44444447

Reorder the terms:
69.44444447 + -16.66666667x + x2 = 50 + 69.44444447

Combine like terms: 50 + 69.44444447 = 119.44444447
69.44444447 + -16.66666667x + x2 = 119.44444447

Factor a perfect square on the left side:
(x + -8.333333335)(x + -8.333333335) = 119.44444447

Calculate the square root of the right side: 10.929064208

Break this problem into two subproblems by setting 
(x + -8.333333335) equal to 10.929064208 and -10.929064208.

Subproblem 1

x + -8.333333335 = 10.929064208 Simplifying x + -8.333333335 = 10.929064208 Reorder the terms: -8.333333335 + x = 10.929064208 Solving -8.333333335 + x = 10.929064208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.333333335' to each side of the equation. -8.333333335 + 8.333333335 + x = 10.929064208 + 8.333333335 Combine like terms: -8.333333335 + 8.333333335 = 0.000000000 0.000000000 + x = 10.929064208 + 8.333333335 x = 10.929064208 + 8.333333335 Combine like terms: 10.929064208 + 8.333333335 = 19.262397543 x = 19.262397543 Simplifying x = 19.262397543

Subproblem 2

x + -8.333333335 = -10.929064208 Simplifying x + -8.333333335 = -10.929064208 Reorder the terms: -8.333333335 + x = -10.929064208 Solving -8.333333335 + x = -10.929064208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.333333335' to each side of the equation. -8.333333335 + 8.333333335 + x = -10.929064208 + 8.333333335 Combine like terms: -8.333333335 + 8.333333335 = 0.000000000 0.000000000 + x = -10.929064208 + 8.333333335 x = -10.929064208 + 8.333333335 Combine like terms: -10.929064208 + 8.333333335 = -2.595730873 x = -2.595730873 Simplifying x = -2.595730873

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.262397543, -2.595730873}

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