-5x(x+6)=4-(-2)

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Solution for -5x(x+6)=4-(-2) equation:


Simplifying
-5x(x + 6) = 4 + -1(-2)

Reorder the terms:
-5x(6 + x) = 4 + -1(-2)
(6 * -5x + x * -5x) = 4 + -1(-2)
(-30x + -5x2) = 4 + -1(-2)

Multiply -1 * -2
-30x + -5x2 = 4 + 2

Combine like terms: 4 + 2 = 6
-30x + -5x2 = 6

Solving
-30x + -5x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + -30x + -5x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + -30x + -5x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(6 + 30x + 5x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(6 + 30x + 5x2)' equal to zero and attempt to solve: Simplifying 6 + 30x + 5x2 = 0 Solving 6 + 30x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 1.2 + 6x + x2 = 0 Move the constant term to the right: Add '-1.2' to each side of the equation. 1.2 + 6x + -1.2 + x2 = 0 + -1.2 Reorder the terms: 1.2 + -1.2 + 6x + x2 = 0 + -1.2 Combine like terms: 1.2 + -1.2 = 0.0 0.0 + 6x + x2 = 0 + -1.2 6x + x2 = 0 + -1.2 Combine like terms: 0 + -1.2 = -1.2 6x + x2 = -1.2 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = -1.2 + 9 Reorder the terms: 9 + 6x + x2 = -1.2 + 9 Combine like terms: -1.2 + 9 = 7.8 9 + 6x + x2 = 7.8 Factor a perfect square on the left side: (x + 3)(x + 3) = 7.8 Calculate the square root of the right side: 2.792848009 Break this problem into two subproblems by setting (x + 3) equal to 2.792848009 and -2.792848009.

Subproblem 1

x + 3 = 2.792848009 Simplifying x + 3 = 2.792848009 Reorder the terms: 3 + x = 2.792848009 Solving 3 + x = 2.792848009 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 2.792848009 + -3 Combine like terms: 3 + -3 = 0 0 + x = 2.792848009 + -3 x = 2.792848009 + -3 Combine like terms: 2.792848009 + -3 = -0.207151991 x = -0.207151991 Simplifying x = -0.207151991

Subproblem 2

x + 3 = -2.792848009 Simplifying x + 3 = -2.792848009 Reorder the terms: 3 + x = -2.792848009 Solving 3 + x = -2.792848009 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -2.792848009 + -3 Combine like terms: 3 + -3 = 0 0 + x = -2.792848009 + -3 x = -2.792848009 + -3 Combine like terms: -2.792848009 + -3 = -5.792848009 x = -5.792848009 Simplifying x = -5.792848009

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.207151991, -5.792848009}

Solution

x = {-0.207151991, -5.792848009}

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