-16x^2+242x+149=0

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Solution for -16x^2+242x+149=0 equation:


Simplifying
-16x2 + 242x + 149 = 0

Reorder the terms:
149 + 242x + -16x2 = 0

Solving
149 + 242x + -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'.
-9.3125 + -15.125x + x2 = 0

Move the constant term to the right:

Add '9.3125' to each side of the equation.
-9.3125 + -15.125x + 9.3125 + x2 = 0 + 9.3125

Reorder the terms:
-9.3125 + 9.3125 + -15.125x + x2 = 0 + 9.3125

Combine like terms: -9.3125 + 9.3125 = 0.0000
0.0000 + -15.125x + x2 = 0 + 9.3125
-15.125x + x2 = 0 + 9.3125

Combine like terms: 0 + 9.3125 = 9.3125
-15.125x + x2 = 9.3125

The x term is -15.125x.  Take half its coefficient (-7.5625).
Square it (57.19140625) and add it to both sides.

Add '57.19140625' to each side of the equation.
-15.125x + 57.19140625 + x2 = 9.3125 + 57.19140625

Reorder the terms:
57.19140625 + -15.125x + x2 = 9.3125 + 57.19140625

Combine like terms: 9.3125 + 57.19140625 = 66.50390625
57.19140625 + -15.125x + x2 = 66.50390625

Factor a perfect square on the left side:
(x + -7.5625)(x + -7.5625) = 66.50390625

Calculate the square root of the right side: 8.154992719

Break this problem into two subproblems by setting 
(x + -7.5625) equal to 8.154992719 and -8.154992719.

Subproblem 1

x + -7.5625 = 8.154992719 Simplifying x + -7.5625 = 8.154992719 Reorder the terms: -7.5625 + x = 8.154992719 Solving -7.5625 + x = 8.154992719 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5625' to each side of the equation. -7.5625 + 7.5625 + x = 8.154992719 + 7.5625 Combine like terms: -7.5625 + 7.5625 = 0.0000 0.0000 + x = 8.154992719 + 7.5625 x = 8.154992719 + 7.5625 Combine like terms: 8.154992719 + 7.5625 = 15.717492719 x = 15.717492719 Simplifying x = 15.717492719

Subproblem 2

x + -7.5625 = -8.154992719 Simplifying x + -7.5625 = -8.154992719 Reorder the terms: -7.5625 + x = -8.154992719 Solving -7.5625 + x = -8.154992719 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5625' to each side of the equation. -7.5625 + 7.5625 + x = -8.154992719 + 7.5625 Combine like terms: -7.5625 + 7.5625 = 0.0000 0.0000 + x = -8.154992719 + 7.5625 x = -8.154992719 + 7.5625 Combine like terms: -8.154992719 + 7.5625 = -0.592492719 x = -0.592492719 Simplifying x = -0.592492719

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.717492719, -0.592492719}

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