x+4x(x+4)-10=48

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Solution for x+4x(x+4)-10=48 equation:


Simplifying
x + 4x(x + 4) + -10 = 48

Reorder the terms:
x + 4x(4 + x) + -10 = 48
x + (4 * 4x + x * 4x) + -10 = 48
x + (16x + 4x2) + -10 = 48

Reorder the terms:
-10 + x + 16x + 4x2 = 48

Combine like terms: x + 16x = 17x
-10 + 17x + 4x2 = 48

Solving
-10 + 17x + 4x2 = 48

Solving for variable 'x'.

Reorder the terms:
-10 + -48 + 17x + 4x2 = 48 + -48

Combine like terms: -10 + -48 = -58
-58 + 17x + 4x2 = 48 + -48

Combine like terms: 48 + -48 = 0
-58 + 17x + 4x2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
-14.5 + 4.25x + x2 = 0

Move the constant term to the right:

Add '14.5' to each side of the equation.
-14.5 + 4.25x + 14.5 + x2 = 0 + 14.5

Reorder the terms:
-14.5 + 14.5 + 4.25x + x2 = 0 + 14.5

Combine like terms: -14.5 + 14.5 = 0.0
0.0 + 4.25x + x2 = 0 + 14.5
4.25x + x2 = 0 + 14.5

Combine like terms: 0 + 14.5 = 14.5
4.25x + x2 = 14.5

The x term is 4.25x.  Take half its coefficient (2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
4.25x + 4.515625 + x2 = 14.5 + 4.515625

Reorder the terms:
4.515625 + 4.25x + x2 = 14.5 + 4.515625

Combine like terms: 14.5 + 4.515625 = 19.015625
4.515625 + 4.25x + x2 = 19.015625

Factor a perfect square on the left side:
(x + 2.125)(x + 2.125) = 19.015625

Calculate the square root of the right side: 4.360690886

Break this problem into two subproblems by setting 
(x + 2.125) equal to 4.360690886 and -4.360690886.

Subproblem 1

x + 2.125 = 4.360690886 Simplifying x + 2.125 = 4.360690886 Reorder the terms: 2.125 + x = 4.360690886 Solving 2.125 + x = 4.360690886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = 4.360690886 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = 4.360690886 + -2.125 x = 4.360690886 + -2.125 Combine like terms: 4.360690886 + -2.125 = 2.235690886 x = 2.235690886 Simplifying x = 2.235690886

Subproblem 2

x + 2.125 = -4.360690886 Simplifying x + 2.125 = -4.360690886 Reorder the terms: 2.125 + x = -4.360690886 Solving 2.125 + x = -4.360690886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = -4.360690886 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = -4.360690886 + -2.125 x = -4.360690886 + -2.125 Combine like terms: -4.360690886 + -2.125 = -6.485690886 x = -6.485690886 Simplifying x = -6.485690886

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.235690886, -6.485690886}

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