x^2+188x+36=-9

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Solution for x^2+188x+36=-9 equation:


Simplifying
x2 + 188x + 36 = -9

Reorder the terms:
36 + 188x + x2 = -9

Solving
36 + 188x + x2 = -9

Solving for variable 'x'.

Reorder the terms:
36 + 9 + 188x + x2 = -9 + 9

Combine like terms: 36 + 9 = 45
45 + 188x + x2 = -9 + 9

Combine like terms: -9 + 9 = 0
45 + 188x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + 188x + -45 + x2 = 0 + -45

Reorder the terms:
45 + -45 + 188x + x2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + 188x + x2 = 0 + -45
188x + x2 = 0 + -45

Combine like terms: 0 + -45 = -45
188x + x2 = -45

The x term is 188x.  Take half its coefficient (94).
Square it (8836) and add it to both sides.

Add '8836' to each side of the equation.
188x + 8836 + x2 = -45 + 8836

Reorder the terms:
8836 + 188x + x2 = -45 + 8836

Combine like terms: -45 + 8836 = 8791
8836 + 188x + x2 = 8791

Factor a perfect square on the left side:
(x + 94)(x + 94) = 8791

Calculate the square root of the right side: 93.760332764

Break this problem into two subproblems by setting 
(x + 94) equal to 93.760332764 and -93.760332764.

Subproblem 1

x + 94 = 93.760332764 Simplifying x + 94 = 93.760332764 Reorder the terms: 94 + x = 93.760332764 Solving 94 + x = 93.760332764 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-94' to each side of the equation. 94 + -94 + x = 93.760332764 + -94 Combine like terms: 94 + -94 = 0 0 + x = 93.760332764 + -94 x = 93.760332764 + -94 Combine like terms: 93.760332764 + -94 = -0.239667236 x = -0.239667236 Simplifying x = -0.239667236

Subproblem 2

x + 94 = -93.760332764 Simplifying x + 94 = -93.760332764 Reorder the terms: 94 + x = -93.760332764 Solving 94 + x = -93.760332764 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-94' to each side of the equation. 94 + -94 + x = -93.760332764 + -94 Combine like terms: 94 + -94 = 0 0 + x = -93.760332764 + -94 x = -93.760332764 + -94 Combine like terms: -93.760332764 + -94 = -187.760332764 x = -187.760332764 Simplifying x = -187.760332764

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.239667236, -187.760332764}

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