16x^2-112x+135=0

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Solution for 16x^2-112x+135=0 equation:


Simplifying
16x2 + -112x + 135 = 0

Reorder the terms:
135 + -112x + 16x2 = 0

Solving
135 + -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'.
8.4375 + -7x + x2 = 0

Move the constant term to the right:

Add '-8.4375' to each side of the equation.
8.4375 + -7x + -8.4375 + x2 = 0 + -8.4375

Reorder the terms:
8.4375 + -8.4375 + -7x + x2 = 0 + -8.4375

Combine like terms: 8.4375 + -8.4375 = 0.0000
0.0000 + -7x + x2 = 0 + -8.4375
-7x + x2 = 0 + -8.4375

Combine like terms: 0 + -8.4375 = -8.4375
-7x + x2 = -8.4375

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 = -8.4375 + 12.25

Reorder the terms:
12.25 + -7x + x2 = -8.4375 + 12.25

Combine like terms: -8.4375 + 12.25 = 3.8125
12.25 + -7x + x2 = 3.8125

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = 3.8125

Calculate the square root of the right side: 1.952562419

Break this problem into two subproblems by setting 
(x + -3.5) equal to 1.952562419 and -1.952562419.

Subproblem 1

x + -3.5 = 1.952562419 Simplifying x + -3.5 = 1.952562419 Reorder the terms: -3.5 + x = 1.952562419 Solving -3.5 + x = 1.952562419 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 = 1.952562419 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 1.952562419 + 3.5 x = 1.952562419 + 3.5 Combine like terms: 1.952562419 + 3.5 = 5.452562419 x = 5.452562419 Simplifying x = 5.452562419

Subproblem 2

x + -3.5 = -1.952562419 Simplifying x + -3.5 = -1.952562419 Reorder the terms: -3.5 + x = -1.952562419 Solving -3.5 + x = -1.952562419 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 = -1.952562419 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -1.952562419 + 3.5 x = -1.952562419 + 3.5 Combine like terms: -1.952562419 + 3.5 = 1.547437581 x = 1.547437581 Simplifying x = 1.547437581

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.452562419, 1.547437581}

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