-16x^2+25x-3=0

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Solution for -16x^2+25x-3=0 equation:


Simplifying
-16x2 + 25x + -3 = 0

Reorder the terms:
-3 + 25x + -16x2 = 0

Solving
-3 + 25x + -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'.
0.1875 + -1.5625x + x2 = 0

Move the constant term to the right:

Add '-0.1875' to each side of the equation.
0.1875 + -1.5625x + -0.1875 + x2 = 0 + -0.1875

Reorder the terms:
0.1875 + -0.1875 + -1.5625x + x2 = 0 + -0.1875

Combine like terms: 0.1875 + -0.1875 = 0.0000
0.0000 + -1.5625x + x2 = 0 + -0.1875
-1.5625x + x2 = 0 + -0.1875

Combine like terms: 0 + -0.1875 = -0.1875
-1.5625x + x2 = -0.1875

The x term is -1.5625x.  Take half its coefficient (-0.78125).
Square it (0.6103515625) and add it to both sides.

Add '0.6103515625' to each side of the equation.
-1.5625x + 0.6103515625 + x2 = -0.1875 + 0.6103515625

Reorder the terms:
0.6103515625 + -1.5625x + x2 = -0.1875 + 0.6103515625

Combine like terms: -0.1875 + 0.6103515625 = 0.4228515625
0.6103515625 + -1.5625x + x2 = 0.4228515625

Factor a perfect square on the left side:
(x + -0.78125)(x + -0.78125) = 0.4228515625

Calculate the square root of the right side: 0.650270376

Break this problem into two subproblems by setting 
(x + -0.78125) equal to 0.650270376 and -0.650270376.

Subproblem 1

x + -0.78125 = 0.650270376 Simplifying x + -0.78125 = 0.650270376 Reorder the terms: -0.78125 + x = 0.650270376 Solving -0.78125 + x = 0.650270376 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.78125' to each side of the equation. -0.78125 + 0.78125 + x = 0.650270376 + 0.78125 Combine like terms: -0.78125 + 0.78125 = 0.00000 0.00000 + x = 0.650270376 + 0.78125 x = 0.650270376 + 0.78125 Combine like terms: 0.650270376 + 0.78125 = 1.431520376 x = 1.431520376 Simplifying x = 1.431520376

Subproblem 2

x + -0.78125 = -0.650270376 Simplifying x + -0.78125 = -0.650270376 Reorder the terms: -0.78125 + x = -0.650270376 Solving -0.78125 + x = -0.650270376 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.78125' to each side of the equation. -0.78125 + 0.78125 + x = -0.650270376 + 0.78125 Combine like terms: -0.78125 + 0.78125 = 0.00000 0.00000 + x = -0.650270376 + 0.78125 x = -0.650270376 + 0.78125 Combine like terms: -0.650270376 + 0.78125 = 0.130979624 x = 0.130979624 Simplifying x = 0.130979624

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.431520376, 0.130979624}

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