x^2+16x-48=6

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Solution for x^2+16x-48=6 equation:


Simplifying
x2 + 16x + -48 = 6

Reorder the terms:
-48 + 16x + x2 = 6

Solving
-48 + 16x + x2 = 6

Solving for variable 'x'.

Reorder the terms:
-48 + -6 + 16x + x2 = 6 + -6

Combine like terms: -48 + -6 = -54
-54 + 16x + x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-54 + 16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '54' to each side of the equation.
-54 + 16x + 54 + x2 = 0 + 54

Reorder the terms:
-54 + 54 + 16x + x2 = 0 + 54

Combine like terms: -54 + 54 = 0
0 + 16x + x2 = 0 + 54
16x + x2 = 0 + 54

Combine like terms: 0 + 54 = 54
16x + x2 = 54

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 54 + 64

Reorder the terms:
64 + 16x + x2 = 54 + 64

Combine like terms: 54 + 64 = 118
64 + 16x + x2 = 118

Factor a perfect square on the left side:
(x + 8)(x + 8) = 118

Calculate the square root of the right side: 10.862780491

Break this problem into two subproblems by setting 
(x + 8) equal to 10.862780491 and -10.862780491.

Subproblem 1

x + 8 = 10.862780491 Simplifying x + 8 = 10.862780491 Reorder the terms: 8 + x = 10.862780491 Solving 8 + x = 10.862780491 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 10.862780491 + -8 Combine like terms: 8 + -8 = 0 0 + x = 10.862780491 + -8 x = 10.862780491 + -8 Combine like terms: 10.862780491 + -8 = 2.862780491 x = 2.862780491 Simplifying x = 2.862780491

Subproblem 2

x + 8 = -10.862780491 Simplifying x + 8 = -10.862780491 Reorder the terms: 8 + x = -10.862780491 Solving 8 + x = -10.862780491 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -10.862780491 + -8 Combine like terms: 8 + -8 = 0 0 + x = -10.862780491 + -8 x = -10.862780491 + -8 Combine like terms: -10.862780491 + -8 = -18.862780491 x = -18.862780491 Simplifying x = -18.862780491

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.862780491, -18.862780491}

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