-16x^2+48x+7=0

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Solution for -16x^2+48x+7=0 equation:


Simplifying
-16x2 + 48x + 7 = 0

Reorder the terms:
7 + 48x + -16x2 = 0

Solving
7 + 48x + -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'.
-0.4375 + -3x + x2 = 0

Move the constant term to the right:

Add '0.4375' to each side of the equation.
-0.4375 + -3x + 0.4375 + x2 = 0 + 0.4375

Reorder the terms:
-0.4375 + 0.4375 + -3x + x2 = 0 + 0.4375

Combine like terms: -0.4375 + 0.4375 = 0.0000
0.0000 + -3x + x2 = 0 + 0.4375
-3x + x2 = 0 + 0.4375

Combine like terms: 0 + 0.4375 = 0.4375
-3x + x2 = 0.4375

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 0.4375 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 0.4375 + 2.25

Combine like terms: 0.4375 + 2.25 = 2.6875
2.25 + -3x + x2 = 2.6875

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 2.6875

Calculate the square root of the right side: 1.639359631

Break this problem into two subproblems by setting 
(x + -1.5) equal to 1.639359631 and -1.639359631.

Subproblem 1

x + -1.5 = 1.639359631 Simplifying x + -1.5 = 1.639359631 Reorder the terms: -1.5 + x = 1.639359631 Solving -1.5 + x = 1.639359631 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.639359631 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.639359631 + 1.5 x = 1.639359631 + 1.5 Combine like terms: 1.639359631 + 1.5 = 3.139359631 x = 3.139359631 Simplifying x = 3.139359631

Subproblem 2

x + -1.5 = -1.639359631 Simplifying x + -1.5 = -1.639359631 Reorder the terms: -1.5 + x = -1.639359631 Solving -1.5 + x = -1.639359631 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.639359631 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.639359631 + 1.5 x = -1.639359631 + 1.5 Combine like terms: -1.639359631 + 1.5 = -0.139359631 x = -0.139359631 Simplifying x = -0.139359631

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.139359631, -0.139359631}

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