5x^2+6x=10

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Solution for 5x^2+6x=10 equation:


Simplifying
5x2 + 6x = 10

Reorder the terms:
6x + 5x2 = 10

Solving
6x + 5x2 = 10

Solving for variable 'x'.

Reorder the terms:
-10 + 6x + 5x2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + 6x + 5x2 = 0

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

Divide each side by '5'.
-2 + 1.2x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 1.2x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + 1.2x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 1.2x + x2 = 0 + 2
1.2x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
1.2x + x2 = 2

The x term is 1.2x.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2x + 0.36 + x2 = 2 + 0.36

Reorder the terms:
0.36 + 1.2x + x2 = 2 + 0.36

Combine like terms: 2 + 0.36 = 2.36
0.36 + 1.2x + x2 = 2.36

Factor a perfect square on the left side:
(x + 0.6)(x + 0.6) = 2.36

Calculate the square root of the right side: 1.53622915

Break this problem into two subproblems by setting 
(x + 0.6) equal to 1.53622915 and -1.53622915.

Subproblem 1

x + 0.6 = 1.53622915 Simplifying x + 0.6 = 1.53622915 Reorder the terms: 0.6 + x = 1.53622915 Solving 0.6 + x = 1.53622915 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = 1.53622915 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = 1.53622915 + -0.6 x = 1.53622915 + -0.6 Combine like terms: 1.53622915 + -0.6 = 0.93622915 x = 0.93622915 Simplifying x = 0.93622915

Subproblem 2

x + 0.6 = -1.53622915 Simplifying x + 0.6 = -1.53622915 Reorder the terms: 0.6 + x = -1.53622915 Solving 0.6 + x = -1.53622915 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = -1.53622915 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = -1.53622915 + -0.6 x = -1.53622915 + -0.6 Combine like terms: -1.53622915 + -0.6 = -2.13622915 x = -2.13622915 Simplifying x = -2.13622915

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.93622915, -2.13622915}

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