-x^2+5x+48=0

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Solution for -x^2+5x+48=0 equation:


Simplifying
-1x2 + 5x + 48 = 0

Reorder the terms:
48 + 5x + -1x2 = 0

Solving
48 + 5x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-48 + -5x + x2 = 0

Move the constant term to the right:

Add '48' to each side of the equation.
-48 + -5x + 48 + x2 = 0 + 48

Reorder the terms:
-48 + 48 + -5x + x2 = 0 + 48

Combine like terms: -48 + 48 = 0
0 + -5x + x2 = 0 + 48
-5x + x2 = 0 + 48

Combine like terms: 0 + 48 = 48
-5x + x2 = 48

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = 48 + 6.25

Reorder the terms:
6.25 + -5x + x2 = 48 + 6.25

Combine like terms: 48 + 6.25 = 54.25
6.25 + -5x + x2 = 54.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 54.25

Calculate the square root of the right side: 7.365459931

Break this problem into two subproblems by setting 
(x + -2.5) equal to 7.365459931 and -7.365459931.

Subproblem 1

x + -2.5 = 7.365459931 Simplifying x + -2.5 = 7.365459931 Reorder the terms: -2.5 + x = 7.365459931 Solving -2.5 + x = 7.365459931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 7.365459931 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 7.365459931 + 2.5 x = 7.365459931 + 2.5 Combine like terms: 7.365459931 + 2.5 = 9.865459931 x = 9.865459931 Simplifying x = 9.865459931

Subproblem 2

x + -2.5 = -7.365459931 Simplifying x + -2.5 = -7.365459931 Reorder the terms: -2.5 + x = -7.365459931 Solving -2.5 + x = -7.365459931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -7.365459931 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -7.365459931 + 2.5 x = -7.365459931 + 2.5 Combine like terms: -7.365459931 + 2.5 = -4.865459931 x = -4.865459931 Simplifying x = -4.865459931

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.865459931, -4.865459931}

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