-5x^2+24x+27=0

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Solution for -5x^2+24x+27=0 equation:


Simplifying
-5x2 + 24x + 27 = 0

Reorder the terms:
27 + 24x + -5x2 = 0

Solving
27 + 24x + -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'.
-5.4 + -4.8x + x2 = 0

Move the constant term to the right:

Add '5.4' to each side of the equation.
-5.4 + -4.8x + 5.4 + x2 = 0 + 5.4

Reorder the terms:
-5.4 + 5.4 + -4.8x + x2 = 0 + 5.4

Combine like terms: -5.4 + 5.4 = 0.0
0.0 + -4.8x + x2 = 0 + 5.4
-4.8x + x2 = 0 + 5.4

Combine like terms: 0 + 5.4 = 5.4
-4.8x + x2 = 5.4

The x term is -4.8x.  Take half its coefficient (-2.4).
Square it (5.76) and add it to both sides.

Add '5.76' to each side of the equation.
-4.8x + 5.76 + x2 = 5.4 + 5.76

Reorder the terms:
5.76 + -4.8x + x2 = 5.4 + 5.76

Combine like terms: 5.4 + 5.76 = 11.16
5.76 + -4.8x + x2 = 11.16

Factor a perfect square on the left side:
(x + -2.4)(x + -2.4) = 11.16

Calculate the square root of the right side: 3.340658618

Break this problem into two subproblems by setting 
(x + -2.4) equal to 3.340658618 and -3.340658618.

Subproblem 1

x + -2.4 = 3.340658618 Simplifying x + -2.4 = 3.340658618 Reorder the terms: -2.4 + x = 3.340658618 Solving -2.4 + x = 3.340658618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + x = 3.340658618 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + x = 3.340658618 + 2.4 x = 3.340658618 + 2.4 Combine like terms: 3.340658618 + 2.4 = 5.740658618 x = 5.740658618 Simplifying x = 5.740658618

Subproblem 2

x + -2.4 = -3.340658618 Simplifying x + -2.4 = -3.340658618 Reorder the terms: -2.4 + x = -3.340658618 Solving -2.4 + x = -3.340658618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + x = -3.340658618 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + x = -3.340658618 + 2.4 x = -3.340658618 + 2.4 Combine like terms: -3.340658618 + 2.4 = -0.940658618 x = -0.940658618 Simplifying x = -0.940658618

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.740658618, -0.940658618}

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