4x^2+32x+48=225

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Solution for 4x^2+32x+48=225 equation:


Simplifying
4x2 + 32x + 48 = 225

Reorder the terms:
48 + 32x + 4x2 = 225

Solving
48 + 32x + 4x2 = 225

Solving for variable 'x'.

Reorder the terms:
48 + -225 + 32x + 4x2 = 225 + -225

Combine like terms: 48 + -225 = -177
-177 + 32x + 4x2 = 225 + -225

Combine like terms: 225 + -225 = 0
-177 + 32x + 4x2 = 0

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

Divide each side by '4'.
-44.25 + 8x + x2 = 0

Move the constant term to the right:

Add '44.25' to each side of the equation.
-44.25 + 8x + 44.25 + x2 = 0 + 44.25

Reorder the terms:
-44.25 + 44.25 + 8x + x2 = 0 + 44.25

Combine like terms: -44.25 + 44.25 = 0.00
0.00 + 8x + x2 = 0 + 44.25
8x + x2 = 0 + 44.25

Combine like terms: 0 + 44.25 = 44.25
8x + x2 = 44.25

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 44.25 + 16

Reorder the terms:
16 + 8x + x2 = 44.25 + 16

Combine like terms: 44.25 + 16 = 60.25
16 + 8x + x2 = 60.25

Factor a perfect square on the left side:
(x + 4)(x + 4) = 60.25

Calculate the square root of the right side: 7.762087348

Break this problem into two subproblems by setting 
(x + 4) equal to 7.762087348 and -7.762087348.

Subproblem 1

x + 4 = 7.762087348 Simplifying x + 4 = 7.762087348 Reorder the terms: 4 + x = 7.762087348 Solving 4 + x = 7.762087348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 7.762087348 + -4 Combine like terms: 4 + -4 = 0 0 + x = 7.762087348 + -4 x = 7.762087348 + -4 Combine like terms: 7.762087348 + -4 = 3.762087348 x = 3.762087348 Simplifying x = 3.762087348

Subproblem 2

x + 4 = -7.762087348 Simplifying x + 4 = -7.762087348 Reorder the terms: 4 + x = -7.762087348 Solving 4 + x = -7.762087348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -7.762087348 + -4 Combine like terms: 4 + -4 = 0 0 + x = -7.762087348 + -4 x = -7.762087348 + -4 Combine like terms: -7.762087348 + -4 = -11.762087348 x = -11.762087348 Simplifying x = -11.762087348

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.762087348, -11.762087348}

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