6x+50=4x^2+14x-15

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Solution for 6x+50=4x^2+14x-15 equation:


Simplifying
6x + 50 = 4x2 + 14x + -15

Reorder the terms:
50 + 6x = 4x2 + 14x + -15

Reorder the terms:
50 + 6x = -15 + 14x + 4x2

Solving
50 + 6x = -15 + 14x + 4x2

Solving for variable 'x'.

Reorder the terms:
50 + 15 + 6x + -14x + -4x2 = -15 + 14x + 4x2 + 15 + -14x + -4x2

Combine like terms: 50 + 15 = 65
65 + 6x + -14x + -4x2 = -15 + 14x + 4x2 + 15 + -14x + -4x2

Combine like terms: 6x + -14x = -8x
65 + -8x + -4x2 = -15 + 14x + 4x2 + 15 + -14x + -4x2

Reorder the terms:
65 + -8x + -4x2 = -15 + 15 + 14x + -14x + 4x2 + -4x2

Combine like terms: -15 + 15 = 0
65 + -8x + -4x2 = 0 + 14x + -14x + 4x2 + -4x2
65 + -8x + -4x2 = 14x + -14x + 4x2 + -4x2

Combine like terms: 14x + -14x = 0
65 + -8x + -4x2 = 0 + 4x2 + -4x2
65 + -8x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
65 + -8x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-16.25 + 2x + x2 = 0

Move the constant term to the right:

Add '16.25' to each side of the equation.
-16.25 + 2x + 16.25 + x2 = 0 + 16.25

Reorder the terms:
-16.25 + 16.25 + 2x + x2 = 0 + 16.25

Combine like terms: -16.25 + 16.25 = 0.00
0.00 + 2x + x2 = 0 + 16.25
2x + x2 = 0 + 16.25

Combine like terms: 0 + 16.25 = 16.25
2x + x2 = 16.25

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 16.25 + 1

Reorder the terms:
1 + 2x + x2 = 16.25 + 1

Combine like terms: 16.25 + 1 = 17.25
1 + 2x + x2 = 17.25

Factor a perfect square on the left side:
(x + 1)(x + 1) = 17.25

Calculate the square root of the right side: 4.153311931

Break this problem into two subproblems by setting 
(x + 1) equal to 4.153311931 and -4.153311931.

Subproblem 1

x + 1 = 4.153311931 Simplifying x + 1 = 4.153311931 Reorder the terms: 1 + x = 4.153311931 Solving 1 + x = 4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 4.153311931 + -1 Combine like terms: 1 + -1 = 0 0 + x = 4.153311931 + -1 x = 4.153311931 + -1 Combine like terms: 4.153311931 + -1 = 3.153311931 x = 3.153311931 Simplifying x = 3.153311931

Subproblem 2

x + 1 = -4.153311931 Simplifying x + 1 = -4.153311931 Reorder the terms: 1 + x = -4.153311931 Solving 1 + x = -4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -4.153311931 + -1 Combine like terms: 1 + -1 = 0 0 + x = -4.153311931 + -1 x = -4.153311931 + -1 Combine like terms: -4.153311931 + -1 = -5.153311931 x = -5.153311931 Simplifying x = -5.153311931

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.153311931, -5.153311931}

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