6x^2+30x-35=

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Solution for 6x^2+30x-35= equation:


Simplifying
6x2 + 30x + -35 = 0

Reorder the terms:
-35 + 30x + 6x2 = 0

Solving
-35 + 30x + 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'.
-5.833333333 + 5x + x2 = 0

Move the constant term to the right:

Add '5.833333333' to each side of the equation.
-5.833333333 + 5x + 5.833333333 + x2 = 0 + 5.833333333

Reorder the terms:
-5.833333333 + 5.833333333 + 5x + x2 = 0 + 5.833333333

Combine like terms: -5.833333333 + 5.833333333 = 0.000000000
0.000000000 + 5x + x2 = 0 + 5.833333333
5x + x2 = 0 + 5.833333333

Combine like terms: 0 + 5.833333333 = 5.833333333
5x + x2 = 5.833333333

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = 5.833333333 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 5.833333333 + 6.25

Combine like terms: 5.833333333 + 6.25 = 12.083333333
6.25 + 5x + x2 = 12.083333333

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 12.083333333

Calculate the square root of the right side: 3.476108936

Break this problem into two subproblems by setting 
(x + 2.5) equal to 3.476108936 and -3.476108936.

Subproblem 1

x + 2.5 = 3.476108936 Simplifying x + 2.5 = 3.476108936 Reorder the terms: 2.5 + x = 3.476108936 Solving 2.5 + x = 3.476108936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 3.476108936 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 3.476108936 + -2.5 x = 3.476108936 + -2.5 Combine like terms: 3.476108936 + -2.5 = 0.976108936 x = 0.976108936 Simplifying x = 0.976108936

Subproblem 2

x + 2.5 = -3.476108936 Simplifying x + 2.5 = -3.476108936 Reorder the terms: 2.5 + x = -3.476108936 Solving 2.5 + x = -3.476108936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -3.476108936 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -3.476108936 + -2.5 x = -3.476108936 + -2.5 Combine like terms: -3.476108936 + -2.5 = -5.976108936 x = -5.976108936 Simplifying x = -5.976108936

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.976108936, -5.976108936}

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