5x^2+48x-27=5

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Solution for 5x^2+48x-27=5 equation:


Simplifying
5x2 + 48x + -27 = 5

Reorder the terms:
-27 + 48x + 5x2 = 5

Solving
-27 + 48x + 5x2 = 5

Solving for variable 'x'.

Reorder the terms:
-27 + -5 + 48x + 5x2 = 5 + -5

Combine like terms: -27 + -5 = -32
-32 + 48x + 5x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-32 + 48x + 5x2 = 0

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

Divide each side by '5'.
-6.4 + 9.6x + x2 = 0

Move the constant term to the right:

Add '6.4' to each side of the equation.
-6.4 + 9.6x + 6.4 + x2 = 0 + 6.4

Reorder the terms:
-6.4 + 6.4 + 9.6x + x2 = 0 + 6.4

Combine like terms: -6.4 + 6.4 = 0.0
0.0 + 9.6x + x2 = 0 + 6.4
9.6x + x2 = 0 + 6.4

Combine like terms: 0 + 6.4 = 6.4
9.6x + x2 = 6.4

The x term is 9.6x.  Take half its coefficient (4.8).
Square it (23.04) and add it to both sides.

Add '23.04' to each side of the equation.
9.6x + 23.04 + x2 = 6.4 + 23.04

Reorder the terms:
23.04 + 9.6x + x2 = 6.4 + 23.04

Combine like terms: 6.4 + 23.04 = 29.44
23.04 + 9.6x + x2 = 29.44

Factor a perfect square on the left side:
(x + 4.8)(x + 4.8) = 29.44

Calculate the square root of the right side: 5.425863987

Break this problem into two subproblems by setting 
(x + 4.8) equal to 5.425863987 and -5.425863987.

Subproblem 1

x + 4.8 = 5.425863987 Simplifying x + 4.8 = 5.425863987 Reorder the terms: 4.8 + x = 5.425863987 Solving 4.8 + x = 5.425863987 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.8' to each side of the equation. 4.8 + -4.8 + x = 5.425863987 + -4.8 Combine like terms: 4.8 + -4.8 = 0.0 0.0 + x = 5.425863987 + -4.8 x = 5.425863987 + -4.8 Combine like terms: 5.425863987 + -4.8 = 0.625863987 x = 0.625863987 Simplifying x = 0.625863987

Subproblem 2

x + 4.8 = -5.425863987 Simplifying x + 4.8 = -5.425863987 Reorder the terms: 4.8 + x = -5.425863987 Solving 4.8 + x = -5.425863987 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.8' to each side of the equation. 4.8 + -4.8 + x = -5.425863987 + -4.8 Combine like terms: 4.8 + -4.8 = 0.0 0.0 + x = -5.425863987 + -4.8 x = -5.425863987 + -4.8 Combine like terms: -5.425863987 + -4.8 = -10.225863987 x = -10.225863987 Simplifying x = -10.225863987

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.625863987, -10.225863987}

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