(X+12)(X+3)=0

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Solution for (X+12)(X+3)=0 equation:


Simplifying
(X + 12)(X + 3) = 0

Reorder the terms:
(12 + X)(X + 3) = 0

Reorder the terms:
(12 + X)(3 + X) = 0

Multiply (12 + X) * (3 + X)
(12(3 + X) + X(3 + X)) = 0
((3 * 12 + X * 12) + X(3 + X)) = 0
((36 + 12X) + X(3 + X)) = 0
(36 + 12X + (3 * X + X * X)) = 0
(36 + 12X + (3X + X2)) = 0

Combine like terms: 12X + 3X = 15X
(36 + 15X + X2) = 0

Solving
36 + 15X + X2 = 0

Solving for variable 'X'.

Factor a trinomial.
(12 + X)(3 + X) = 0

Subproblem 1

Set the factor '(12 + X)' equal to zero and attempt to solve: Simplifying 12 + X = 0 Solving 12 + X = 0 Move all terms containing X to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + X = 0 + -12 Combine like terms: 12 + -12 = 0 0 + X = 0 + -12 X = 0 + -12 Combine like terms: 0 + -12 = -12 X = -12 Simplifying X = -12

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 = {-12, -3}

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