-5(-6+x^2)=x

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Solution for -5(-6+x^2)=x equation:


Simplifying
-5(-6 + x2) = x
(-6 * -5 + x2 * -5) = x
(30 + -5x2) = x

Solving
30 + -5x2 = x

Solving for variable 'x'.

Reorder the terms:
30 + -1x + -5x2 = x + -1x

Combine like terms: x + -1x = 0
30 + -1x + -5x2 = 0

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

Divide each side by '-5'.
-6 + 0.2x + x2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 0.2x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + 0.2x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 0.2x + x2 = 0 + 6
0.2x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
0.2x + x2 = 6

The x term is 0.2x.  Take half its coefficient (0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
0.2x + 0.01 + x2 = 6 + 0.01

Reorder the terms:
0.01 + 0.2x + x2 = 6 + 0.01

Combine like terms: 6 + 0.01 = 6.01
0.01 + 0.2x + x2 = 6.01

Factor a perfect square on the left side:
(x + 0.1)(x + 0.1) = 6.01

Calculate the square root of the right side: 2.451530134

Break this problem into two subproblems by setting 
(x + 0.1) equal to 2.451530134 and -2.451530134.

Subproblem 1

x + 0.1 = 2.451530134 Simplifying x + 0.1 = 2.451530134 Reorder the terms: 0.1 + x = 2.451530134 Solving 0.1 + x = 2.451530134 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1' to each side of the equation. 0.1 + -0.1 + x = 2.451530134 + -0.1 Combine like terms: 0.1 + -0.1 = 0.0 0.0 + x = 2.451530134 + -0.1 x = 2.451530134 + -0.1 Combine like terms: 2.451530134 + -0.1 = 2.351530134 x = 2.351530134 Simplifying x = 2.351530134

Subproblem 2

x + 0.1 = -2.451530134 Simplifying x + 0.1 = -2.451530134 Reorder the terms: 0.1 + x = -2.451530134 Solving 0.1 + x = -2.451530134 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1' to each side of the equation. 0.1 + -0.1 + x = -2.451530134 + -0.1 Combine like terms: 0.1 + -0.1 = 0.0 0.0 + x = -2.451530134 + -0.1 x = -2.451530134 + -0.1 Combine like terms: -2.451530134 + -0.1 = -2.551530134 x = -2.551530134 Simplifying x = -2.551530134

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.351530134, -2.551530134}

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