25x^2+17x-54=0

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Solution for 25x^2+17x-54=0 equation:


Simplifying
25x2 + 17x + -54 = 0

Reorder the terms:
-54 + 17x + 25x2 = 0

Solving
-54 + 17x + 25x2 = 0

Solving for variable 'x'.

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

Divide each side by '25'.
-2.16 + 0.68x + x2 = 0

Move the constant term to the right:

Add '2.16' to each side of the equation.
-2.16 + 0.68x + 2.16 + x2 = 0 + 2.16

Reorder the terms:
-2.16 + 2.16 + 0.68x + x2 = 0 + 2.16

Combine like terms: -2.16 + 2.16 = 0.00
0.00 + 0.68x + x2 = 0 + 2.16
0.68x + x2 = 0 + 2.16

Combine like terms: 0 + 2.16 = 2.16
0.68x + x2 = 2.16

The x term is 0.68x.  Take half its coefficient (0.34).
Square it (0.1156) and add it to both sides.

Add '0.1156' to each side of the equation.
0.68x + 0.1156 + x2 = 2.16 + 0.1156

Reorder the terms:
0.1156 + 0.68x + x2 = 2.16 + 0.1156

Combine like terms: 2.16 + 0.1156 = 2.2756
0.1156 + 0.68x + x2 = 2.2756

Factor a perfect square on the left side:
(x + 0.34)(x + 0.34) = 2.2756

Calculate the square root of the right side: 1.508509198

Break this problem into two subproblems by setting 
(x + 0.34) equal to 1.508509198 and -1.508509198.

Subproblem 1

x + 0.34 = 1.508509198 Simplifying x + 0.34 = 1.508509198 Reorder the terms: 0.34 + x = 1.508509198 Solving 0.34 + x = 1.508509198 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.34' to each side of the equation. 0.34 + -0.34 + x = 1.508509198 + -0.34 Combine like terms: 0.34 + -0.34 = 0.00 0.00 + x = 1.508509198 + -0.34 x = 1.508509198 + -0.34 Combine like terms: 1.508509198 + -0.34 = 1.168509198 x = 1.168509198 Simplifying x = 1.168509198

Subproblem 2

x + 0.34 = -1.508509198 Simplifying x + 0.34 = -1.508509198 Reorder the terms: 0.34 + x = -1.508509198 Solving 0.34 + x = -1.508509198 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.34' to each side of the equation. 0.34 + -0.34 + x = -1.508509198 + -0.34 Combine like terms: 0.34 + -0.34 = 0.00 0.00 + x = -1.508509198 + -0.34 x = -1.508509198 + -0.34 Combine like terms: -1.508509198 + -0.34 = -1.848509198 x = -1.848509198 Simplifying x = -1.848509198

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.168509198, -1.848509198}

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