3x(2x+5)=4x-3

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Solution for 3x(2x+5)=4x-3 equation:


Simplifying
3x(2x + 5) = 4x + -3

Reorder the terms:
3x(5 + 2x) = 4x + -3
(5 * 3x + 2x * 3x) = 4x + -3
(15x + 6x2) = 4x + -3

Reorder the terms:
15x + 6x2 = -3 + 4x

Solving
15x + 6x2 = -3 + 4x

Solving for variable 'x'.

Reorder the terms:
3 + 15x + -4x + 6x2 = -3 + 4x + 3 + -4x

Combine like terms: 15x + -4x = 11x
3 + 11x + 6x2 = -3 + 4x + 3 + -4x

Reorder the terms:
3 + 11x + 6x2 = -3 + 3 + 4x + -4x

Combine like terms: -3 + 3 = 0
3 + 11x + 6x2 = 0 + 4x + -4x
3 + 11x + 6x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
3 + 11x + 6x2 = 0

Factor a trinomial.
(3 + 2x)(1 + 3x) = 0

Subproblem 1

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Subproblem 2

Set the factor '(1 + 3x)' equal to zero and attempt to solve: Simplifying 1 + 3x = 0 Solving 1 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 0 + -1 3x = 0 + -1 Combine like terms: 0 + -1 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333

Solution

x = {-1.5, -0.3333333333}

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