x^2+47x+48=0

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Solution for x^2+47x+48=0 equation:


Simplifying
x2 + 47x + 48 = 0

Reorder the terms:
48 + 47x + x2 = 0

Solving
48 + 47x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-48' to each side of the equation.
48 + 47x + -48 + x2 = 0 + -48

Reorder the terms:
48 + -48 + 47x + x2 = 0 + -48

Combine like terms: 48 + -48 = 0
0 + 47x + x2 = 0 + -48
47x + x2 = 0 + -48

Combine like terms: 0 + -48 = -48
47x + x2 = -48

The x term is 47x.  Take half its coefficient (23.5).
Square it (552.25) and add it to both sides.

Add '552.25' to each side of the equation.
47x + 552.25 + x2 = -48 + 552.25

Reorder the terms:
552.25 + 47x + x2 = -48 + 552.25

Combine like terms: -48 + 552.25 = 504.25
552.25 + 47x + x2 = 504.25

Factor a perfect square on the left side:
(x + 23.5)(x + 23.5) = 504.25

Calculate the square root of the right side: 22.455511573

Break this problem into two subproblems by setting 
(x + 23.5) equal to 22.455511573 and -22.455511573.

Subproblem 1

x + 23.5 = 22.455511573 Simplifying x + 23.5 = 22.455511573 Reorder the terms: 23.5 + x = 22.455511573 Solving 23.5 + x = 22.455511573 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-23.5' to each side of the equation. 23.5 + -23.5 + x = 22.455511573 + -23.5 Combine like terms: 23.5 + -23.5 = 0.0 0.0 + x = 22.455511573 + -23.5 x = 22.455511573 + -23.5 Combine like terms: 22.455511573 + -23.5 = -1.044488427 x = -1.044488427 Simplifying x = -1.044488427

Subproblem 2

x + 23.5 = -22.455511573 Simplifying x + 23.5 = -22.455511573 Reorder the terms: 23.5 + x = -22.455511573 Solving 23.5 + x = -22.455511573 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-23.5' to each side of the equation. 23.5 + -23.5 + x = -22.455511573 + -23.5 Combine like terms: 23.5 + -23.5 = 0.0 0.0 + x = -22.455511573 + -23.5 x = -22.455511573 + -23.5 Combine like terms: -22.455511573 + -23.5 = -45.955511573 x = -45.955511573 Simplifying x = -45.955511573

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.044488427, -45.955511573}

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