-16x^2+27x+6=0

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Solution for -16x^2+27x+6=0 equation:


Simplifying
-16x2 + 27x + 6 = 0

Reorder the terms:
6 + 27x + -16x2 = 0

Solving
6 + 27x + -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'.
-0.375 + -1.6875x + x2 = 0

Move the constant term to the right:

Add '0.375' to each side of the equation.
-0.375 + -1.6875x + 0.375 + x2 = 0 + 0.375

Reorder the terms:
-0.375 + 0.375 + -1.6875x + x2 = 0 + 0.375

Combine like terms: -0.375 + 0.375 = 0.000
0.000 + -1.6875x + x2 = 0 + 0.375
-1.6875x + x2 = 0 + 0.375

Combine like terms: 0 + 0.375 = 0.375
-1.6875x + x2 = 0.375

The x term is -1.6875x.  Take half its coefficient (-0.84375).
Square it (0.7119140625) and add it to both sides.

Add '0.7119140625' to each side of the equation.
-1.6875x + 0.7119140625 + x2 = 0.375 + 0.7119140625

Reorder the terms:
0.7119140625 + -1.6875x + x2 = 0.375 + 0.7119140625

Combine like terms: 0.375 + 0.7119140625 = 1.0869140625
0.7119140625 + -1.6875x + x2 = 1.0869140625

Factor a perfect square on the left side:
(x + -0.84375)(x + -0.84375) = 1.0869140625

Calculate the square root of the right side: 1.042551707

Break this problem into two subproblems by setting 
(x + -0.84375) equal to 1.042551707 and -1.042551707.

Subproblem 1

x + -0.84375 = 1.042551707 Simplifying x + -0.84375 = 1.042551707 Reorder the terms: -0.84375 + x = 1.042551707 Solving -0.84375 + x = 1.042551707 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.84375' to each side of the equation. -0.84375 + 0.84375 + x = 1.042551707 + 0.84375 Combine like terms: -0.84375 + 0.84375 = 0.00000 0.00000 + x = 1.042551707 + 0.84375 x = 1.042551707 + 0.84375 Combine like terms: 1.042551707 + 0.84375 = 1.886301707 x = 1.886301707 Simplifying x = 1.886301707

Subproblem 2

x + -0.84375 = -1.042551707 Simplifying x + -0.84375 = -1.042551707 Reorder the terms: -0.84375 + x = -1.042551707 Solving -0.84375 + x = -1.042551707 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.84375' to each side of the equation. -0.84375 + 0.84375 + x = -1.042551707 + 0.84375 Combine like terms: -0.84375 + 0.84375 = 0.00000 0.00000 + x = -1.042551707 + 0.84375 x = -1.042551707 + 0.84375 Combine like terms: -1.042551707 + 0.84375 = -0.198801707 x = -0.198801707 Simplifying x = -0.198801707

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.886301707, -0.198801707}

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