(a+3)(a-1)=

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Solution for (a+3)(a-1)= equation:


Simplifying
(a + 3)(a + -1) = 0

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

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

Multiply (3 + a) * (-1 + a)
(3(-1 + a) + a(-1 + a)) = 0
((-1 * 3 + a * 3) + a(-1 + a)) = 0
((-3 + 3a) + a(-1 + a)) = 0
(-3 + 3a + (-1 * a + a * a)) = 0
(-3 + 3a + (-1a + a2)) = 0

Combine like terms: 3a + -1a = 2a
(-3 + 2a + a2) = 0

Solving
-3 + 2a + a2 = 0

Solving for variable 'a'.

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

Subproblem 1

Set the factor '(-3 + -1a)' equal to zero and attempt to solve: Simplifying -3 + -1a = 0 Solving -3 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1a = 0 + 3 -1a = 0 + 3 Combine like terms: 0 + 3 = 3 -1a = 3 Divide each side by '-1'. a = -3 Simplifying a = -3

Subproblem 2

Set the factor '(1 + -1a)' equal to zero and attempt to solve: Simplifying 1 + -1a = 0 Solving 1 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1a = 0 + -1 -1a = 0 + -1 Combine like terms: 0 + -1 = -1 -1a = -1 Divide each side by '-1'. a = 1 Simplifying a = 1

Solution

a = {-3, 1}

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