-16x^2+75x+12=0

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Solution for -16x^2+75x+12=0 equation:


Simplifying
-16x2 + 75x + 12 = 0

Reorder the terms:
12 + 75x + -16x2 = 0

Solving
12 + 75x + -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'.
-0.75 + -4.6875x + x2 = 0

Move the constant term to the right:

Add '0.75' to each side of the equation.
-0.75 + -4.6875x + 0.75 + x2 = 0 + 0.75

Reorder the terms:
-0.75 + 0.75 + -4.6875x + x2 = 0 + 0.75

Combine like terms: -0.75 + 0.75 = 0.00
0.00 + -4.6875x + x2 = 0 + 0.75
-4.6875x + x2 = 0 + 0.75

Combine like terms: 0 + 0.75 = 0.75
-4.6875x + x2 = 0.75

The x term is -4.6875x.  Take half its coefficient (-2.34375).
Square it (5.493164063) and add it to both sides.

Add '5.493164063' to each side of the equation.
-4.6875x + 5.493164063 + x2 = 0.75 + 5.493164063

Reorder the terms:
5.493164063 + -4.6875x + x2 = 0.75 + 5.493164063

Combine like terms: 0.75 + 5.493164063 = 6.243164063
5.493164063 + -4.6875x + x2 = 6.243164063

Factor a perfect square on the left side:
(x + -2.34375)(x + -2.34375) = 6.243164063

Calculate the square root of the right side: 2.498632439

Break this problem into two subproblems by setting 
(x + -2.34375) equal to 2.498632439 and -2.498632439.

Subproblem 1

x + -2.34375 = 2.498632439 Simplifying x + -2.34375 = 2.498632439 Reorder the terms: -2.34375 + x = 2.498632439 Solving -2.34375 + x = 2.498632439 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + x = 2.498632439 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + x = 2.498632439 + 2.34375 x = 2.498632439 + 2.34375 Combine like terms: 2.498632439 + 2.34375 = 4.842382439 x = 4.842382439 Simplifying x = 4.842382439

Subproblem 2

x + -2.34375 = -2.498632439 Simplifying x + -2.34375 = -2.498632439 Reorder the terms: -2.34375 + x = -2.498632439 Solving -2.34375 + x = -2.498632439 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + x = -2.498632439 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + x = -2.498632439 + 2.34375 x = -2.498632439 + 2.34375 Combine like terms: -2.498632439 + 2.34375 = -0.154882439 x = -0.154882439 Simplifying x = -0.154882439

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.842382439, -0.154882439}

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