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

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


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

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

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

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

Multiply (3 + 2x) * (-3 + x)
-15x + 5x2 = (3(-3 + x) + 2x * (-3 + x))
-15x + 5x2 = ((-3 * 3 + x * 3) + 2x * (-3 + x))
-15x + 5x2 = ((-9 + 3x) + 2x * (-3 + x))
-15x + 5x2 = (-9 + 3x + (-3 * 2x + x * 2x))
-15x + 5x2 = (-9 + 3x + (-6x + 2x2))

Combine like terms: 3x + -6x = -3x
-15x + 5x2 = (-9 + -3x + 2x2)

Solving
-15x + 5x2 = -9 + -3x + 2x2

Solving for variable 'x'.

Reorder the terms:
9 + -15x + 3x + 5x2 + -2x2 = -9 + -3x + 2x2 + 9 + 3x + -2x2

Combine like terms: -15x + 3x = -12x
9 + -12x + 5x2 + -2x2 = -9 + -3x + 2x2 + 9 + 3x + -2x2

Combine like terms: 5x2 + -2x2 = 3x2
9 + -12x + 3x2 = -9 + -3x + 2x2 + 9 + 3x + -2x2

Reorder the terms:
9 + -12x + 3x2 = -9 + 9 + -3x + 3x + 2x2 + -2x2

Combine like terms: -9 + 9 = 0
9 + -12x + 3x2 = 0 + -3x + 3x + 2x2 + -2x2
9 + -12x + 3x2 = -3x + 3x + 2x2 + -2x2

Combine like terms: -3x + 3x = 0
9 + -12x + 3x2 = 0 + 2x2 + -2x2
9 + -12x + 3x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
9 + -12x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(3 + -4x + x2) = 0

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

Ignore the factor 3.

Subproblem 1

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 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 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {1, 3}

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