5x^2+7x-13=24-4x

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Solution for 5x^2+7x-13=24-4x equation:


Simplifying
5x2 + 7x + -13 = 24 + -4x

Reorder the terms:
-13 + 7x + 5x2 = 24 + -4x

Solving
-13 + 7x + 5x2 = 24 + -4x

Solving for variable 'x'.

Reorder the terms:
-13 + -24 + 7x + 4x + 5x2 = 24 + -4x + -24 + 4x

Combine like terms: -13 + -24 = -37
-37 + 7x + 4x + 5x2 = 24 + -4x + -24 + 4x

Combine like terms: 7x + 4x = 11x
-37 + 11x + 5x2 = 24 + -4x + -24 + 4x

Reorder the terms:
-37 + 11x + 5x2 = 24 + -24 + -4x + 4x

Combine like terms: 24 + -24 = 0
-37 + 11x + 5x2 = 0 + -4x + 4x
-37 + 11x + 5x2 = -4x + 4x

Combine like terms: -4x + 4x = 0
-37 + 11x + 5x2 = 0

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

Divide each side by '5'.
-7.4 + 2.2x + x2 = 0

Move the constant term to the right:

Add '7.4' to each side of the equation.
-7.4 + 2.2x + 7.4 + x2 = 0 + 7.4

Reorder the terms:
-7.4 + 7.4 + 2.2x + x2 = 0 + 7.4

Combine like terms: -7.4 + 7.4 = 0.0
0.0 + 2.2x + x2 = 0 + 7.4
2.2x + x2 = 0 + 7.4

Combine like terms: 0 + 7.4 = 7.4
2.2x + x2 = 7.4

The x term is 2.2x.  Take half its coefficient (1.1).
Square it (1.21) and add it to both sides.

Add '1.21' to each side of the equation.
2.2x + 1.21 + x2 = 7.4 + 1.21

Reorder the terms:
1.21 + 2.2x + x2 = 7.4 + 1.21

Combine like terms: 7.4 + 1.21 = 8.61
1.21 + 2.2x + x2 = 8.61

Factor a perfect square on the left side:
(x + 1.1)(x + 1.1) = 8.61

Calculate the square root of the right side: 2.93428015

Break this problem into two subproblems by setting 
(x + 1.1) equal to 2.93428015 and -2.93428015.

Subproblem 1

x + 1.1 = 2.93428015 Simplifying x + 1.1 = 2.93428015 Reorder the terms: 1.1 + x = 2.93428015 Solving 1.1 + x = 2.93428015 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + x = 2.93428015 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + x = 2.93428015 + -1.1 x = 2.93428015 + -1.1 Combine like terms: 2.93428015 + -1.1 = 1.83428015 x = 1.83428015 Simplifying x = 1.83428015

Subproblem 2

x + 1.1 = -2.93428015 Simplifying x + 1.1 = -2.93428015 Reorder the terms: 1.1 + x = -2.93428015 Solving 1.1 + x = -2.93428015 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + x = -2.93428015 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + x = -2.93428015 + -1.1 x = -2.93428015 + -1.1 Combine like terms: -2.93428015 + -1.1 = -4.03428015 x = -4.03428015 Simplifying x = -4.03428015

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.83428015, -4.03428015}

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