x*3+27+(x+3)(x-9)=0

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Solution for x*3+27+(x+3)(x-9)=0 equation:


Simplifying
x * 3 + 27 + (x + 3)(x + -9) = 0

Reorder the terms for easier multiplication:
3x + 27 + (x + 3)(x + -9) = 0

Reorder the terms:
3x + 27 + (3 + x)(x + -9) = 0

Reorder the terms:
3x + 27 + (3 + x)(-9 + x) = 0

Multiply (3 + x) * (-9 + x)
3x + 27 + (3(-9 + x) + x(-9 + x)) = 0
3x + 27 + ((-9 * 3 + x * 3) + x(-9 + x)) = 0
3x + 27 + ((-27 + 3x) + x(-9 + x)) = 0
3x + 27 + (-27 + 3x + (-9 * x + x * x)) = 0
3x + 27 + (-27 + 3x + (-9x + x2)) = 0

Combine like terms: 3x + -9x = -6x
3x + 27 + (-27 + -6x + x2) = 0

Reorder the terms:
27 + -27 + 3x + -6x + x2 = 0

Combine like terms: 27 + -27 = 0
0 + 3x + -6x + x2 = 0
3x + -6x + x2 = 0

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

Solving
-3x + x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

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

Solution

x = {0, 3}

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