2.7384+2.608x-165x^2=0

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Solution for 2.7384+2.608x-165x^2=0 equation:


Simplifying
2.7384 + 2.608x + -165x2 = 0

Solving
2.7384 + 2.608x + -165x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-165 the coefficient of the squared term: 

Divide each side by '-165'.
-0.01659636364 + -0.01580606061x + x2 = 0

Move the constant term to the right:

Add '0.01659636364' to each side of the equation.
-0.01659636364 + -0.01580606061x + 0.01659636364 + x2 = 0 + 0.01659636364

Reorder the terms:
-0.01659636364 + 0.01659636364 + -0.01580606061x + x2 = 0 + 0.01659636364

Combine like terms: -0.01659636364 + 0.01659636364 = 0.00000000000
0.00000000000 + -0.01580606061x + x2 = 0 + 0.01659636364
-0.01580606061x + x2 = 0 + 0.01659636364

Combine like terms: 0 + 0.01659636364 = 0.01659636364
-0.01580606061x + x2 = 0.01659636364

The x term is -0.01580606061x.  Take half its coefficient (-0.007903030305).
Square it (0.00006245788800) and add it to both sides.

Add '0.00006245788800' to each side of the equation.
-0.01580606061x + 0.00006245788800 + x2 = 0.01659636364 + 0.00006245788800

Reorder the terms:
0.00006245788800 + -0.01580606061x + x2 = 0.01659636364 + 0.00006245788800

Combine like terms: 0.01659636364 + 0.00006245788800 = 0.016658821528
0.00006245788800 + -0.01580606061x + x2 = 0.016658821528

Factor a perfect square on the left side:
(x + -0.007903030305)(x + -0.007903030305) = 0.016658821528

Calculate the square root of the right side: 0.129069057

Break this problem into two subproblems by setting 
(x + -0.007903030305) equal to 0.129069057 and -0.129069057.

Subproblem 1

x + -0.007903030305 = 0.129069057 Simplifying x + -0.007903030305 = 0.129069057 Reorder the terms: -0.007903030305 + x = 0.129069057 Solving -0.007903030305 + x = 0.129069057 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.007903030305' to each side of the equation. -0.007903030305 + 0.007903030305 + x = 0.129069057 + 0.007903030305 Combine like terms: -0.007903030305 + 0.007903030305 = 0.000000000000 0.000000000000 + x = 0.129069057 + 0.007903030305 x = 0.129069057 + 0.007903030305 Combine like terms: 0.129069057 + 0.007903030305 = 0.136972087305 x = 0.136972087305 Simplifying x = 0.136972087305

Subproblem 2

x + -0.007903030305 = -0.129069057 Simplifying x + -0.007903030305 = -0.129069057 Reorder the terms: -0.007903030305 + x = -0.129069057 Solving -0.007903030305 + x = -0.129069057 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.007903030305' to each side of the equation. -0.007903030305 + 0.007903030305 + x = -0.129069057 + 0.007903030305 Combine like terms: -0.007903030305 + 0.007903030305 = 0.000000000000 0.000000000000 + x = -0.129069057 + 0.007903030305 x = -0.129069057 + 0.007903030305 Combine like terms: -0.129069057 + 0.007903030305 = -0.121166026695 x = -0.121166026695 Simplifying x = -0.121166026695

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.136972087305, -0.121166026695}

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