16x^2-175x+85=0

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Solution for 16x^2-175x+85=0 equation:


Simplifying
16x2 + -175x + 85 = 0

Reorder the terms:
85 + -175x + 16x2 = 0

Solving
85 + -175x + 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'.
5.3125 + -10.9375x + x2 = 0

Move the constant term to the right:

Add '-5.3125' to each side of the equation.
5.3125 + -10.9375x + -5.3125 + x2 = 0 + -5.3125

Reorder the terms:
5.3125 + -5.3125 + -10.9375x + x2 = 0 + -5.3125

Combine like terms: 5.3125 + -5.3125 = 0.0000
0.0000 + -10.9375x + x2 = 0 + -5.3125
-10.9375x + x2 = 0 + -5.3125

Combine like terms: 0 + -5.3125 = -5.3125
-10.9375x + x2 = -5.3125

The x term is -10.9375x.  Take half its coefficient (-5.46875).
Square it (29.90722656) and add it to both sides.

Add '29.90722656' to each side of the equation.
-10.9375x + 29.90722656 + x2 = -5.3125 + 29.90722656

Reorder the terms:
29.90722656 + -10.9375x + x2 = -5.3125 + 29.90722656

Combine like terms: -5.3125 + 29.90722656 = 24.59472656
29.90722656 + -10.9375x + x2 = 24.59472656

Factor a perfect square on the left side:
(x + -5.46875)(x + -5.46875) = 24.59472656

Calculate the square root of the right side: 4.959307065

Break this problem into two subproblems by setting 
(x + -5.46875) equal to 4.959307065 and -4.959307065.

Subproblem 1

x + -5.46875 = 4.959307065 Simplifying x + -5.46875 = 4.959307065 Reorder the terms: -5.46875 + x = 4.959307065 Solving -5.46875 + x = 4.959307065 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.46875' to each side of the equation. -5.46875 + 5.46875 + x = 4.959307065 + 5.46875 Combine like terms: -5.46875 + 5.46875 = 0.00000 0.00000 + x = 4.959307065 + 5.46875 x = 4.959307065 + 5.46875 Combine like terms: 4.959307065 + 5.46875 = 10.428057065 x = 10.428057065 Simplifying x = 10.428057065

Subproblem 2

x + -5.46875 = -4.959307065 Simplifying x + -5.46875 = -4.959307065 Reorder the terms: -5.46875 + x = -4.959307065 Solving -5.46875 + x = -4.959307065 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.46875' to each side of the equation. -5.46875 + 5.46875 + x = -4.959307065 + 5.46875 Combine like terms: -5.46875 + 5.46875 = 0.00000 0.00000 + x = -4.959307065 + 5.46875 x = -4.959307065 + 5.46875 Combine like terms: -4.959307065 + 5.46875 = 0.509442935 x = 0.509442935 Simplifying x = 0.509442935

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.428057065, 0.509442935}

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