5400x^2+2x-30=x

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Solution for 5400x^2+2x-30=x equation:


Simplifying
5400x2 + 2x + -30 = x

Reorder the terms:
-30 + 2x + 5400x2 = x

Solving
-30 + 2x + 5400x2 = x

Solving for variable 'x'.

Reorder the terms:
-30 + 2x + -1x + 5400x2 = x + -1x

Combine like terms: 2x + -1x = 1x
-30 + 1x + 5400x2 = x + -1x

Combine like terms: x + -1x = 0
-30 + 1x + 5400x2 = 0

Begin completing the square.  Divide all terms by
5400 the coefficient of the squared term: 

Divide each side by '5400'.
-0.005555555556 + 0.0001851851852x + x2 = 0

Move the constant term to the right:

Add '0.005555555556' to each side of the equation.
-0.005555555556 + 0.0001851851852x + 0.005555555556 + x2 = 0 + 0.005555555556

Reorder the terms:
-0.005555555556 + 0.005555555556 + 0.0001851851852x + x2 = 0 + 0.005555555556

Combine like terms: -0.005555555556 + 0.005555555556 = 0.000000000000
0.000000000000 + 0.0001851851852x + x2 = 0 + 0.005555555556
0.0001851851852x + x2 = 0 + 0.005555555556

Combine like terms: 0 + 0.005555555556 = 0.005555555556
0.0001851851852x + x2 = 0.005555555556

The x term is 0.0001851851852x.  Take half its coefficient (0.0000925925926).
Square it (0.000000008573388204) and add it to both sides.

Add '0.000000008573388204' to each side of the equation.
0.0001851851852x + 0.000000008573388204 + x2 = 0.005555555556 + 0.000000008573388204

Reorder the terms:
0.000000008573388204 + 0.0001851851852x + x2 = 0.005555555556 + 0.000000008573388204

Combine like terms: 0.005555555556 + 0.000000008573388204 = 0.005555564129388204
0.000000008573388204 + 0.0001851851852x + x2 = 0.005555564129388204

Factor a perfect square on the left side:
(x + 0.0000925925926)(x + 0.0000925925926) = 0.005555564129388204

Calculate the square root of the right side: 0.074535657

Break this problem into two subproblems by setting 
(x + 0.0000925925926) equal to 0.074535657 and -0.074535657.

Subproblem 1

x + 0.0000925925926 = 0.074535657 Simplifying x + 0.0000925925926 = 0.074535657 Reorder the terms: 0.0000925925926 + x = 0.074535657 Solving 0.0000925925926 + x = 0.074535657 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0000925925926' to each side of the equation. 0.0000925925926 + -0.0000925925926 + x = 0.074535657 + -0.0000925925926 Combine like terms: 0.0000925925926 + -0.0000925925926 = 0.0000000000000 0.0000000000000 + x = 0.074535657 + -0.0000925925926 x = 0.074535657 + -0.0000925925926 Combine like terms: 0.074535657 + -0.0000925925926 = 0.0744430644074 x = 0.0744430644074 Simplifying x = 0.0744430644074

Subproblem 2

x + 0.0000925925926 = -0.074535657 Simplifying x + 0.0000925925926 = -0.074535657 Reorder the terms: 0.0000925925926 + x = -0.074535657 Solving 0.0000925925926 + x = -0.074535657 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0000925925926' to each side of the equation. 0.0000925925926 + -0.0000925925926 + x = -0.074535657 + -0.0000925925926 Combine like terms: 0.0000925925926 + -0.0000925925926 = 0.0000000000000 0.0000000000000 + x = -0.074535657 + -0.0000925925926 x = -0.074535657 + -0.0000925925926 Combine like terms: -0.074535657 + -0.0000925925926 = -0.0746282495926 x = -0.0746282495926 Simplifying x = -0.0746282495926

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.0744430644074, -0.0746282495926}

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