6x^2+49x-225=0

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Solution for 6x^2+49x-225=0 equation:


Simplifying
6x2 + 49x + -225 = 0

Reorder the terms:
-225 + 49x + 6x2 = 0

Solving
-225 + 49x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-37.5 + 8.166666667x + x2 = 0

Move the constant term to the right:

Add '37.5' to each side of the equation.
-37.5 + 8.166666667x + 37.5 + x2 = 0 + 37.5

Reorder the terms:
-37.5 + 37.5 + 8.166666667x + x2 = 0 + 37.5

Combine like terms: -37.5 + 37.5 = 0.0
0.0 + 8.166666667x + x2 = 0 + 37.5
8.166666667x + x2 = 0 + 37.5

Combine like terms: 0 + 37.5 = 37.5
8.166666667x + x2 = 37.5

The x term is 8.166666667x.  Take half its coefficient (4.083333334).
Square it (16.67361112) and add it to both sides.

Add '16.67361112' to each side of the equation.
8.166666667x + 16.67361112 + x2 = 37.5 + 16.67361112

Reorder the terms:
16.67361112 + 8.166666667x + x2 = 37.5 + 16.67361112

Combine like terms: 37.5 + 16.67361112 = 54.17361112
16.67361112 + 8.166666667x + x2 = 54.17361112

Factor a perfect square on the left side:
(x + 4.083333334)(x + 4.083333334) = 54.17361112

Calculate the square root of the right side: 7.36027249

Break this problem into two subproblems by setting 
(x + 4.083333334) equal to 7.36027249 and -7.36027249.

Subproblem 1

x + 4.083333334 = 7.36027249 Simplifying x + 4.083333334 = 7.36027249 Reorder the terms: 4.083333334 + x = 7.36027249 Solving 4.083333334 + x = 7.36027249 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.083333334' to each side of the equation. 4.083333334 + -4.083333334 + x = 7.36027249 + -4.083333334 Combine like terms: 4.083333334 + -4.083333334 = 0.000000000 0.000000000 + x = 7.36027249 + -4.083333334 x = 7.36027249 + -4.083333334 Combine like terms: 7.36027249 + -4.083333334 = 3.276939156 x = 3.276939156 Simplifying x = 3.276939156

Subproblem 2

x + 4.083333334 = -7.36027249 Simplifying x + 4.083333334 = -7.36027249 Reorder the terms: 4.083333334 + x = -7.36027249 Solving 4.083333334 + x = -7.36027249 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.083333334' to each side of the equation. 4.083333334 + -4.083333334 + x = -7.36027249 + -4.083333334 Combine like terms: 4.083333334 + -4.083333334 = 0.000000000 0.000000000 + x = -7.36027249 + -4.083333334 x = -7.36027249 + -4.083333334 Combine like terms: -7.36027249 + -4.083333334 = -11.443605824 x = -11.443605824 Simplifying x = -11.443605824

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.276939156, -11.443605824}

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