-16x^2+24x+125=0

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Solution for -16x^2+24x+125=0 equation:


Simplifying
-16x2 + 24x + 125 = 0

Reorder the terms:
125 + 24x + -16x2 = 0

Solving
125 + 24x + -16x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-7.8125 + -1.5x + x2 = 0

Move the constant term to the right:

Add '7.8125' to each side of the equation.
-7.8125 + -1.5x + 7.8125 + x2 = 0 + 7.8125

Reorder the terms:
-7.8125 + 7.8125 + -1.5x + x2 = 0 + 7.8125

Combine like terms: -7.8125 + 7.8125 = 0.0000
0.0000 + -1.5x + x2 = 0 + 7.8125
-1.5x + x2 = 0 + 7.8125

Combine like terms: 0 + 7.8125 = 7.8125
-1.5x + x2 = 7.8125

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 7.8125 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 7.8125 + 0.5625

Combine like terms: 7.8125 + 0.5625 = 8.375
0.5625 + -1.5x + x2 = 8.375

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 8.375

Calculate the square root of the right side: 2.893959226

Break this problem into two subproblems by setting 
(x + -0.75) equal to 2.893959226 and -2.893959226.

Subproblem 1

x + -0.75 = 2.893959226 Simplifying x + -0.75 = 2.893959226 Reorder the terms: -0.75 + x = 2.893959226 Solving -0.75 + x = 2.893959226 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 2.893959226 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 2.893959226 + 0.75 x = 2.893959226 + 0.75 Combine like terms: 2.893959226 + 0.75 = 3.643959226 x = 3.643959226 Simplifying x = 3.643959226

Subproblem 2

x + -0.75 = -2.893959226 Simplifying x + -0.75 = -2.893959226 Reorder the terms: -0.75 + x = -2.893959226 Solving -0.75 + x = -2.893959226 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -2.893959226 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -2.893959226 + 0.75 x = -2.893959226 + 0.75 Combine like terms: -2.893959226 + 0.75 = -2.143959226 x = -2.143959226 Simplifying x = -2.143959226

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.643959226, -2.143959226}

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