16x^2+29x-7=0

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Solution for 16x^2+29x-7=0 equation:


Simplifying
16x2 + 29x + -7 = 0

Reorder the terms:
-7 + 29x + 16x2 = 0

Solving
-7 + 29x + 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'.
-0.4375 + 1.8125x + x2 = 0

Move the constant term to the right:

Add '0.4375' to each side of the equation.
-0.4375 + 1.8125x + 0.4375 + x2 = 0 + 0.4375

Reorder the terms:
-0.4375 + 0.4375 + 1.8125x + x2 = 0 + 0.4375

Combine like terms: -0.4375 + 0.4375 = 0.0000
0.0000 + 1.8125x + x2 = 0 + 0.4375
1.8125x + x2 = 0 + 0.4375

Combine like terms: 0 + 0.4375 = 0.4375
1.8125x + x2 = 0.4375

The x term is 1.8125x.  Take half its coefficient (0.90625).
Square it (0.8212890625) and add it to both sides.

Add '0.8212890625' to each side of the equation.
1.8125x + 0.8212890625 + x2 = 0.4375 + 0.8212890625

Reorder the terms:
0.8212890625 + 1.8125x + x2 = 0.4375 + 0.8212890625

Combine like terms: 0.4375 + 0.8212890625 = 1.2587890625
0.8212890625 + 1.8125x + x2 = 1.2587890625

Factor a perfect square on the left side:
(x + 0.90625)(x + 0.90625) = 1.2587890625

Calculate the square root of the right side: 1.121957692

Break this problem into two subproblems by setting 
(x + 0.90625) equal to 1.121957692 and -1.121957692.

Subproblem 1

x + 0.90625 = 1.121957692 Simplifying x + 0.90625 = 1.121957692 Reorder the terms: 0.90625 + x = 1.121957692 Solving 0.90625 + x = 1.121957692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.90625' to each side of the equation. 0.90625 + -0.90625 + x = 1.121957692 + -0.90625 Combine like terms: 0.90625 + -0.90625 = 0.00000 0.00000 + x = 1.121957692 + -0.90625 x = 1.121957692 + -0.90625 Combine like terms: 1.121957692 + -0.90625 = 0.215707692 x = 0.215707692 Simplifying x = 0.215707692

Subproblem 2

x + 0.90625 = -1.121957692 Simplifying x + 0.90625 = -1.121957692 Reorder the terms: 0.90625 + x = -1.121957692 Solving 0.90625 + x = -1.121957692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.90625' to each side of the equation. 0.90625 + -0.90625 + x = -1.121957692 + -0.90625 Combine like terms: 0.90625 + -0.90625 = 0.00000 0.00000 + x = -1.121957692 + -0.90625 x = -1.121957692 + -0.90625 Combine like terms: -1.121957692 + -0.90625 = -2.028207692 x = -2.028207692 Simplifying x = -2.028207692

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.215707692, -2.028207692}

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