5x^2+27x=14-13x

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Solution for 5x^2+27x=14-13x equation:


Simplifying
5x2 + 27x = 14 + -13x

Reorder the terms:
27x + 5x2 = 14 + -13x

Solving
27x + 5x2 = 14 + -13x

Solving for variable 'x'.

Reorder the terms:
-14 + 27x + 13x + 5x2 = 14 + -13x + -14 + 13x

Combine like terms: 27x + 13x = 40x
-14 + 40x + 5x2 = 14 + -13x + -14 + 13x

Reorder the terms:
-14 + 40x + 5x2 = 14 + -14 + -13x + 13x

Combine like terms: 14 + -14 = 0
-14 + 40x + 5x2 = 0 + -13x + 13x
-14 + 40x + 5x2 = -13x + 13x

Combine like terms: -13x + 13x = 0
-14 + 40x + 5x2 = 0

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

Divide each side by '5'.
-2.8 + 8x + x2 = 0

Move the constant term to the right:

Add '2.8' to each side of the equation.
-2.8 + 8x + 2.8 + x2 = 0 + 2.8

Reorder the terms:
-2.8 + 2.8 + 8x + x2 = 0 + 2.8

Combine like terms: -2.8 + 2.8 = 0.0
0.0 + 8x + x2 = 0 + 2.8
8x + x2 = 0 + 2.8

Combine like terms: 0 + 2.8 = 2.8
8x + x2 = 2.8

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 2.8 + 16

Reorder the terms:
16 + 8x + x2 = 2.8 + 16

Combine like terms: 2.8 + 16 = 18.8
16 + 8x + x2 = 18.8

Factor a perfect square on the left side:
(x + 4)(x + 4) = 18.8

Calculate the square root of the right side: 4.335896678

Break this problem into two subproblems by setting 
(x + 4) equal to 4.335896678 and -4.335896678.

Subproblem 1

x + 4 = 4.335896678 Simplifying x + 4 = 4.335896678 Reorder the terms: 4 + x = 4.335896678 Solving 4 + x = 4.335896678 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 4.335896678 + -4 Combine like terms: 4 + -4 = 0 0 + x = 4.335896678 + -4 x = 4.335896678 + -4 Combine like terms: 4.335896678 + -4 = 0.335896678 x = 0.335896678 Simplifying x = 0.335896678

Subproblem 2

x + 4 = -4.335896678 Simplifying x + 4 = -4.335896678 Reorder the terms: 4 + x = -4.335896678 Solving 4 + x = -4.335896678 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -4.335896678 + -4 Combine like terms: 4 + -4 = 0 0 + x = -4.335896678 + -4 x = -4.335896678 + -4 Combine like terms: -4.335896678 + -4 = -8.335896678 x = -8.335896678 Simplifying x = -8.335896678

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.335896678, -8.335896678}

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