16p^2-56p+43=0

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Solution for 16p^2-56p+43=0 equation:


Simplifying
16p2 + -56p + 43 = 0

Reorder the terms:
43 + -56p + 16p2 = 0

Solving
43 + -56p + 16p2 = 0

Solving for variable 'p'.

Begin completing the square.  Divide all terms by
16 the coefficient of the squared term: 

Divide each side by '16'.
2.6875 + -3.5p + p2 = 0

Move the constant term to the right:

Add '-2.6875' to each side of the equation.
2.6875 + -3.5p + -2.6875 + p2 = 0 + -2.6875

Reorder the terms:
2.6875 + -2.6875 + -3.5p + p2 = 0 + -2.6875

Combine like terms: 2.6875 + -2.6875 = 0.0000
0.0000 + -3.5p + p2 = 0 + -2.6875
-3.5p + p2 = 0 + -2.6875

Combine like terms: 0 + -2.6875 = -2.6875
-3.5p + p2 = -2.6875

The p term is -3.5p.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5p + 3.0625 + p2 = -2.6875 + 3.0625

Reorder the terms:
3.0625 + -3.5p + p2 = -2.6875 + 3.0625

Combine like terms: -2.6875 + 3.0625 = 0.375
3.0625 + -3.5p + p2 = 0.375

Factor a perfect square on the left side:
(p + -1.75)(p + -1.75) = 0.375

Calculate the square root of the right side: 0.612372436

Break this problem into two subproblems by setting 
(p + -1.75) equal to 0.612372436 and -0.612372436.

Subproblem 1

p + -1.75 = 0.612372436 Simplifying p + -1.75 = 0.612372436 Reorder the terms: -1.75 + p = 0.612372436 Solving -1.75 + p = 0.612372436 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + p = 0.612372436 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + p = 0.612372436 + 1.75 p = 0.612372436 + 1.75 Combine like terms: 0.612372436 + 1.75 = 2.362372436 p = 2.362372436 Simplifying p = 2.362372436

Subproblem 2

p + -1.75 = -0.612372436 Simplifying p + -1.75 = -0.612372436 Reorder the terms: -1.75 + p = -0.612372436 Solving -1.75 + p = -0.612372436 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + p = -0.612372436 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + p = -0.612372436 + 1.75 p = -0.612372436 + 1.75 Combine like terms: -0.612372436 + 1.75 = 1.137627564 p = 1.137627564 Simplifying p = 1.137627564

Solution

The solution to the problem is based on the solutions from the subproblems. p = {2.362372436, 1.137627564}

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