(5-x)(3x+3)=0

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Solution for (5-x)(3x+3)=0 equation:


Simplifying
(5 + -1x)(3x + 3) = 0

Reorder the terms:
(5 + -1x)(3 + 3x) = 0

Multiply (5 + -1x) * (3 + 3x)
(5(3 + 3x) + -1x * (3 + 3x)) = 0
((3 * 5 + 3x * 5) + -1x * (3 + 3x)) = 0
((15 + 15x) + -1x * (3 + 3x)) = 0
(15 + 15x + (3 * -1x + 3x * -1x)) = 0
(15 + 15x + (-3x + -3x2)) = 0

Combine like terms: 15x + -3x = 12x
(15 + 12x + -3x2) = 0

Solving
15 + 12x + -3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + 4x + -1x2) = 0

Factor a trinomial.
3((5 + -1x)(1 + x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Subproblem 2

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

Solution

x = {5, -1}

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