(x-3)(15-6x)=0

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Solution for (x-3)(15-6x)=0 equation:


Simplifying
(x + -3)(15 + -6x) = 0

Reorder the terms:
(-3 + x)(15 + -6x) = 0

Multiply (-3 + x) * (15 + -6x)
(-3(15 + -6x) + x(15 + -6x)) = 0
((15 * -3 + -6x * -3) + x(15 + -6x)) = 0
((-45 + 18x) + x(15 + -6x)) = 0
(-45 + 18x + (15 * x + -6x * x)) = 0
(-45 + 18x + (15x + -6x2)) = 0

Combine like terms: 18x + 15x = 33x
(-45 + 33x + -6x2) = 0

Solving
-45 + 33x + -6x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-15 + 11x + -2x2) = 0

Factor a trinomial.
3((-3 + x)(5 + -2x)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

Set the factor '(5 + -2x)' equal to zero and attempt to solve: Simplifying 5 + -2x = 0 Solving 5 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2x = 0 + -5 -2x = 0 + -5 Combine like terms: 0 + -5 = -5 -2x = -5 Divide each side by '-2'. x = 2.5 Simplifying x = 2.5

Solution

x = {3, 2.5}

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