-16*x^2+10x+725=0

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Solution for -16*x^2+10x+725=0 equation:


Simplifying
-16x2 + 10x + 725 = 0

Reorder the terms:
725 + 10x + -16x2 = 0

Solving
725 + 10x + -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'.
-45.3125 + -0.625x + x2 = 0

Move the constant term to the right:

Add '45.3125' to each side of the equation.
-45.3125 + -0.625x + 45.3125 + x2 = 0 + 45.3125

Reorder the terms:
-45.3125 + 45.3125 + -0.625x + x2 = 0 + 45.3125

Combine like terms: -45.3125 + 45.3125 = 0.0000
0.0000 + -0.625x + x2 = 0 + 45.3125
-0.625x + x2 = 0 + 45.3125

Combine like terms: 0 + 45.3125 = 45.3125
-0.625x + x2 = 45.3125

The x term is -0.625x.  Take half its coefficient (-0.3125).
Square it (0.09765625) and add it to both sides.

Add '0.09765625' to each side of the equation.
-0.625x + 0.09765625 + x2 = 45.3125 + 0.09765625

Reorder the terms:
0.09765625 + -0.625x + x2 = 45.3125 + 0.09765625

Combine like terms: 45.3125 + 0.09765625 = 45.41015625
0.09765625 + -0.625x + x2 = 45.41015625

Factor a perfect square on the left side:
(x + -0.3125)(x + -0.3125) = 45.41015625

Calculate the square root of the right side: 6.738705829

Break this problem into two subproblems by setting 
(x + -0.3125) equal to 6.738705829 and -6.738705829.

Subproblem 1

x + -0.3125 = 6.738705829 Simplifying x + -0.3125 = 6.738705829 Reorder the terms: -0.3125 + x = 6.738705829 Solving -0.3125 + x = 6.738705829 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3125' to each side of the equation. -0.3125 + 0.3125 + x = 6.738705829 + 0.3125 Combine like terms: -0.3125 + 0.3125 = 0.0000 0.0000 + x = 6.738705829 + 0.3125 x = 6.738705829 + 0.3125 Combine like terms: 6.738705829 + 0.3125 = 7.051205829 x = 7.051205829 Simplifying x = 7.051205829

Subproblem 2

x + -0.3125 = -6.738705829 Simplifying x + -0.3125 = -6.738705829 Reorder the terms: -0.3125 + x = -6.738705829 Solving -0.3125 + x = -6.738705829 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3125' to each side of the equation. -0.3125 + 0.3125 + x = -6.738705829 + 0.3125 Combine like terms: -0.3125 + 0.3125 = 0.0000 0.0000 + x = -6.738705829 + 0.3125 x = -6.738705829 + 0.3125 Combine like terms: -6.738705829 + 0.3125 = -6.426205829 x = -6.426205829 Simplifying x = -6.426205829

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.051205829, -6.426205829}

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