5x^2+25x-48=0

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Solution for 5x^2+25x-48=0 equation:


Simplifying
5x2 + 25x + -48 = 0

Reorder the terms:
-48 + 25x + 5x2 = 0

Solving
-48 + 25x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-9.6 + 5x + x2 = 0

Move the constant term to the right:

Add '9.6' to each side of the equation.
-9.6 + 5x + 9.6 + x2 = 0 + 9.6

Reorder the terms:
-9.6 + 9.6 + 5x + x2 = 0 + 9.6

Combine like terms: -9.6 + 9.6 = 0.0
0.0 + 5x + x2 = 0 + 9.6
5x + x2 = 0 + 9.6

Combine like terms: 0 + 9.6 = 9.6
5x + x2 = 9.6

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 = 9.6 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 9.6 + 6.25

Combine like terms: 9.6 + 6.25 = 15.85
6.25 + 5x + x2 = 15.85

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 15.85

Calculate the square root of the right side: 3.981205847

Break this problem into two subproblems by setting 
(x + 2.5) equal to 3.981205847 and -3.981205847.

Subproblem 1

x + 2.5 = 3.981205847 Simplifying x + 2.5 = 3.981205847 Reorder the terms: 2.5 + x = 3.981205847 Solving 2.5 + x = 3.981205847 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 = 3.981205847 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 3.981205847 + -2.5 x = 3.981205847 + -2.5 Combine like terms: 3.981205847 + -2.5 = 1.481205847 x = 1.481205847 Simplifying x = 1.481205847

Subproblem 2

x + 2.5 = -3.981205847 Simplifying x + 2.5 = -3.981205847 Reorder the terms: 2.5 + x = -3.981205847 Solving 2.5 + x = -3.981205847 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 = -3.981205847 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -3.981205847 + -2.5 x = -3.981205847 + -2.5 Combine like terms: -3.981205847 + -2.5 = -6.481205847 x = -6.481205847 Simplifying x = -6.481205847

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.481205847, -6.481205847}

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