3x^2+30x=6

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Solution for 3x^2+30x=6 equation:


Simplifying
3x2 + 30x = 6

Reorder the terms:
30x + 3x2 = 6

Solving
30x + 3x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + 30x + 3x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + 30x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-2 + 10x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-2 + 10x + x2)' equal to zero and attempt to solve: Simplifying -2 + 10x + x2 = 0 Solving -2 + 10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + 10x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + 10x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 10x + x2 = 0 + 2 10x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 10x + x2 = 2 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = 2 + 25 Reorder the terms: 25 + 10x + x2 = 2 + 25 Combine like terms: 2 + 25 = 27 25 + 10x + x2 = 27 Factor a perfect square on the left side: (x + 5)(x + 5) = 27 Calculate the square root of the right side: 5.196152423 Break this problem into two subproblems by setting (x + 5) equal to 5.196152423 and -5.196152423.

Subproblem 1

x + 5 = 5.196152423 Simplifying x + 5 = 5.196152423 Reorder the terms: 5 + x = 5.196152423 Solving 5 + x = 5.196152423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 5.196152423 + -5 Combine like terms: 5 + -5 = 0 0 + x = 5.196152423 + -5 x = 5.196152423 + -5 Combine like terms: 5.196152423 + -5 = 0.196152423 x = 0.196152423 Simplifying x = 0.196152423

Subproblem 2

x + 5 = -5.196152423 Simplifying x + 5 = -5.196152423 Reorder the terms: 5 + x = -5.196152423 Solving 5 + x = -5.196152423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -5.196152423 + -5 Combine like terms: 5 + -5 = 0 0 + x = -5.196152423 + -5 x = -5.196152423 + -5 Combine like terms: -5.196152423 + -5 = -10.196152423 x = -10.196152423 Simplifying x = -10.196152423

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.196152423, -10.196152423}

Solution

x = {0.196152423, -10.196152423}

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