9x^2-151x-4878=0

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Solution for 9x^2-151x-4878=0 equation:


Simplifying
9x2 + -151x + -4878 = 0

Reorder the terms:
-4878 + -151x + 9x2 = 0

Solving
-4878 + -151x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
-542 + -16.77777778x + x2 = 0

Move the constant term to the right:

Add '542' to each side of the equation.
-542 + -16.77777778x + 542 + x2 = 0 + 542

Reorder the terms:
-542 + 542 + -16.77777778x + x2 = 0 + 542

Combine like terms: -542 + 542 = 0
0 + -16.77777778x + x2 = 0 + 542
-16.77777778x + x2 = 0 + 542

Combine like terms: 0 + 542 = 542
-16.77777778x + x2 = 542

The x term is -16.77777778x.  Take half its coefficient (-8.38888889).
Square it (70.37345681) and add it to both sides.

Add '70.37345681' to each side of the equation.
-16.77777778x + 70.37345681 + x2 = 542 + 70.37345681

Reorder the terms:
70.37345681 + -16.77777778x + x2 = 542 + 70.37345681

Combine like terms: 542 + 70.37345681 = 612.37345681
70.37345681 + -16.77777778x + x2 = 612.37345681

Factor a perfect square on the left side:
(x + -8.38888889)(x + -8.38888889) = 612.37345681

Calculate the square root of the right side: 24.746180651

Break this problem into two subproblems by setting 
(x + -8.38888889) equal to 24.746180651 and -24.746180651.

Subproblem 1

x + -8.38888889 = 24.746180651 Simplifying x + -8.38888889 = 24.746180651 Reorder the terms: -8.38888889 + x = 24.746180651 Solving -8.38888889 + x = 24.746180651 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.38888889' to each side of the equation. -8.38888889 + 8.38888889 + x = 24.746180651 + 8.38888889 Combine like terms: -8.38888889 + 8.38888889 = 0.00000000 0.00000000 + x = 24.746180651 + 8.38888889 x = 24.746180651 + 8.38888889 Combine like terms: 24.746180651 + 8.38888889 = 33.135069541 x = 33.135069541 Simplifying x = 33.135069541

Subproblem 2

x + -8.38888889 = -24.746180651 Simplifying x + -8.38888889 = -24.746180651 Reorder the terms: -8.38888889 + x = -24.746180651 Solving -8.38888889 + x = -24.746180651 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.38888889' to each side of the equation. -8.38888889 + 8.38888889 + x = -24.746180651 + 8.38888889 Combine like terms: -8.38888889 + 8.38888889 = 0.00000000 0.00000000 + x = -24.746180651 + 8.38888889 x = -24.746180651 + 8.38888889 Combine like terms: -24.746180651 + 8.38888889 = -16.357291761 x = -16.357291761 Simplifying x = -16.357291761

Solution

The solution to the problem is based on the solutions from the subproblems. x = {33.135069541, -16.357291761}

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