16x^2-112x+25=0

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Solution for 16x^2-112x+25=0 equation:


Simplifying
16x2 + -112x + 25 = 0

Reorder the terms:
25 + -112x + 16x2 = 0

Solving
25 + -112x + 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'.
1.5625 + -7x + x2 = 0

Move the constant term to the right:

Add '-1.5625' to each side of the equation.
1.5625 + -7x + -1.5625 + x2 = 0 + -1.5625

Reorder the terms:
1.5625 + -1.5625 + -7x + x2 = 0 + -1.5625

Combine like terms: 1.5625 + -1.5625 = 0.0000
0.0000 + -7x + x2 = 0 + -1.5625
-7x + x2 = 0 + -1.5625

Combine like terms: 0 + -1.5625 = -1.5625
-7x + x2 = -1.5625

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = -1.5625 + 12.25

Reorder the terms:
12.25 + -7x + x2 = -1.5625 + 12.25

Combine like terms: -1.5625 + 12.25 = 10.6875
12.25 + -7x + x2 = 10.6875

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = 10.6875

Calculate the square root of the right side: 3.269174208

Break this problem into two subproblems by setting 
(x + -3.5) equal to 3.269174208 and -3.269174208.

Subproblem 1

x + -3.5 = 3.269174208 Simplifying x + -3.5 = 3.269174208 Reorder the terms: -3.5 + x = 3.269174208 Solving -3.5 + x = 3.269174208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 3.269174208 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 3.269174208 + 3.5 x = 3.269174208 + 3.5 Combine like terms: 3.269174208 + 3.5 = 6.769174208 x = 6.769174208 Simplifying x = 6.769174208

Subproblem 2

x + -3.5 = -3.269174208 Simplifying x + -3.5 = -3.269174208 Reorder the terms: -3.5 + x = -3.269174208 Solving -3.5 + x = -3.269174208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -3.269174208 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -3.269174208 + 3.5 x = -3.269174208 + 3.5 Combine like terms: -3.269174208 + 3.5 = 0.230825792 x = 0.230825792 Simplifying x = 0.230825792

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.769174208, 0.230825792}

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