(a+5)(2a+3)=0

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Solution for (a+5)(2a+3)=0 equation:


Simplifying
(a + 5)(2a + 3) = 0

Reorder the terms:
(5 + a)(2a + 3) = 0

Reorder the terms:
(5 + a)(3 + 2a) = 0

Multiply (5 + a) * (3 + 2a)
(5(3 + 2a) + a(3 + 2a)) = 0
((3 * 5 + 2a * 5) + a(3 + 2a)) = 0
((15 + 10a) + a(3 + 2a)) = 0
(15 + 10a + (3 * a + 2a * a)) = 0
(15 + 10a + (3a + 2a2)) = 0

Combine like terms: 10a + 3a = 13a
(15 + 13a + 2a2) = 0

Solving
15 + 13a + 2a2 = 0

Solving for variable 'a'.

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

Subproblem 1

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

Subproblem 2

Set the factor '(3 + 2a)' equal to zero and attempt to solve: Simplifying 3 + 2a = 0 Solving 3 + 2a = 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 + 2a = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2a = 0 + -3 2a = 0 + -3 Combine like terms: 0 + -3 = -3 2a = -3 Divide each side by '2'. a = -1.5 Simplifying a = -1.5

Solution

a = {-5, -1.5}

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