9x^2+88x+4=

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Solution for 9x^2+88x+4= equation:


Simplifying
9x2 + 88x + 4 = 0

Reorder the terms:
4 + 88x + 9x2 = 0

Solving
4 + 88x + 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'.
0.4444444444 + 9.777777778x + x2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + 9.777777778x + -0.4444444444 + x2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + 9.777777778x + x2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + 9.777777778x + x2 = 0 + -0.4444444444
9.777777778x + x2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
9.777777778x + x2 = -0.4444444444

The x term is 9.777777778x.  Take half its coefficient (4.888888889).
Square it (23.90123457) and add it to both sides.

Add '23.90123457' to each side of the equation.
9.777777778x + 23.90123457 + x2 = -0.4444444444 + 23.90123457

Reorder the terms:
23.90123457 + 9.777777778x + x2 = -0.4444444444 + 23.90123457

Combine like terms: -0.4444444444 + 23.90123457 = 23.4567901256
23.90123457 + 9.777777778x + x2 = 23.4567901256

Factor a perfect square on the left side:
(x + 4.888888889)(x + 4.888888889) = 23.4567901256

Calculate the square root of the right side: 4.843221049

Break this problem into two subproblems by setting 
(x + 4.888888889) equal to 4.843221049 and -4.843221049.

Subproblem 1

x + 4.888888889 = 4.843221049 Simplifying x + 4.888888889 = 4.843221049 Reorder the terms: 4.888888889 + x = 4.843221049 Solving 4.888888889 + x = 4.843221049 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.888888889' to each side of the equation. 4.888888889 + -4.888888889 + x = 4.843221049 + -4.888888889 Combine like terms: 4.888888889 + -4.888888889 = 0.000000000 0.000000000 + x = 4.843221049 + -4.888888889 x = 4.843221049 + -4.888888889 Combine like terms: 4.843221049 + -4.888888889 = -0.04566784 x = -0.04566784 Simplifying x = -0.04566784

Subproblem 2

x + 4.888888889 = -4.843221049 Simplifying x + 4.888888889 = -4.843221049 Reorder the terms: 4.888888889 + x = -4.843221049 Solving 4.888888889 + x = -4.843221049 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.888888889' to each side of the equation. 4.888888889 + -4.888888889 + x = -4.843221049 + -4.888888889 Combine like terms: 4.888888889 + -4.888888889 = 0.000000000 0.000000000 + x = -4.843221049 + -4.888888889 x = -4.843221049 + -4.888888889 Combine like terms: -4.843221049 + -4.888888889 = -9.732109938 x = -9.732109938 Simplifying x = -9.732109938

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.04566784, -9.732109938}

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