3x^2+30x=24

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Solution for 3x^2+30x=24 equation:


Simplifying
3x2 + 30x = 24

Reorder the terms:
30x + 3x2 = 24

Solving
30x + 3x2 = 24

Solving for variable 'x'.

Reorder the terms:
-24 + 30x + 3x2 = 24 + -24

Combine like terms: 24 + -24 = 0
-24 + 30x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-8 + 10x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-8 + 10x + x2)' equal to zero and attempt to solve: Simplifying -8 + 10x + x2 = 0 Solving -8 + 10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '8' to each side of the equation. -8 + 10x + 8 + x2 = 0 + 8 Reorder the terms: -8 + 8 + 10x + x2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + 10x + x2 = 0 + 8 10x + x2 = 0 + 8 Combine like terms: 0 + 8 = 8 10x + x2 = 8 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 = 8 + 25 Reorder the terms: 25 + 10x + x2 = 8 + 25 Combine like terms: 8 + 25 = 33 25 + 10x + x2 = 33 Factor a perfect square on the left side: (x + 5)(x + 5) = 33 Calculate the square root of the right side: 5.744562647 Break this problem into two subproblems by setting (x + 5) equal to 5.744562647 and -5.744562647.

Subproblem 1

x + 5 = 5.744562647 Simplifying x + 5 = 5.744562647 Reorder the terms: 5 + x = 5.744562647 Solving 5 + x = 5.744562647 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 = 5.744562647 + -5 Combine like terms: 5 + -5 = 0 0 + x = 5.744562647 + -5 x = 5.744562647 + -5 Combine like terms: 5.744562647 + -5 = 0.744562647 x = 0.744562647 Simplifying x = 0.744562647

Subproblem 2

x + 5 = -5.744562647 Simplifying x + 5 = -5.744562647 Reorder the terms: 5 + x = -5.744562647 Solving 5 + x = -5.744562647 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 = -5.744562647 + -5 Combine like terms: 5 + -5 = 0 0 + x = -5.744562647 + -5 x = -5.744562647 + -5 Combine like terms: -5.744562647 + -5 = -10.744562647 x = -10.744562647 Simplifying x = -10.744562647

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.744562647, -10.744562647}

Solution

x = {0.744562647, -10.744562647}

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