3(2+5x)x=3

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Solution for 3(2+5x)x=3 equation:


Simplifying
3(2 + 5x) * x = 3

Reorder the terms for easier multiplication:
3x(2 + 5x) = 3
(2 * 3x + 5x * 3x) = 3
(6x + 15x2) = 3

Solving
6x + 15x2 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + 6x + 15x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 6x + 15x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-1 + 2x + 5x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-1 + 2x + 5x2)' equal to zero and attempt to solve: Simplifying -1 + 2x + 5x2 = 0 Solving -1 + 2x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -0.2 + 0.4x + x2 = 0 Move the constant term to the right: Add '0.2' to each side of the equation. -0.2 + 0.4x + 0.2 + x2 = 0 + 0.2 Reorder the terms: -0.2 + 0.2 + 0.4x + x2 = 0 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + 0.4x + x2 = 0 + 0.2 0.4x + x2 = 0 + 0.2 Combine like terms: 0 + 0.2 = 0.2 0.4x + x2 = 0.2 The x term is 0.4x. Take half its coefficient (0.2). Square it (0.04) and add it to both sides. Add '0.04' to each side of the equation. 0.4x + 0.04 + x2 = 0.2 + 0.04 Reorder the terms: 0.04 + 0.4x + x2 = 0.2 + 0.04 Combine like terms: 0.2 + 0.04 = 0.24 0.04 + 0.4x + x2 = 0.24 Factor a perfect square on the left side: (x + 0.2)(x + 0.2) = 0.24 Calculate the square root of the right side: 0.489897949 Break this problem into two subproblems by setting (x + 0.2) equal to 0.489897949 and -0.489897949.

Subproblem 1

x + 0.2 = 0.489897949 Simplifying x + 0.2 = 0.489897949 Reorder the terms: 0.2 + x = 0.489897949 Solving 0.2 + x = 0.489897949 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 0.489897949 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 0.489897949 + -0.2 x = 0.489897949 + -0.2 Combine like terms: 0.489897949 + -0.2 = 0.289897949 x = 0.289897949 Simplifying x = 0.289897949

Subproblem 2

x + 0.2 = -0.489897949 Simplifying x + 0.2 = -0.489897949 Reorder the terms: 0.2 + x = -0.489897949 Solving 0.2 + x = -0.489897949 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -0.489897949 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -0.489897949 + -0.2 x = -0.489897949 + -0.2 Combine like terms: -0.489897949 + -0.2 = -0.689897949 x = -0.689897949 Simplifying x = -0.689897949

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.289897949, -0.689897949}

Solution

x = {0.289897949, -0.689897949}

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