ifeanyisitoah ifeanyisitoah

14-12-2019
Mathematics

contestada

[tex] {a }^{2} + 8a + 15 = 0[/tex]

Respuesta :

jimrgrant1 jimrgrant1

14-12-2019

Answer:

a = - 5, a = - 3

Step-by-step explanation:

Given

a² + 8a + 15 = 0 ← in standard form

(a + 3)(a + 5) = 0 ← in factored form

Equate each factor to zero and solve for a

a + 3 = 0 ⇒ a = - 3

a + 5 = 0 ⇒ a = - 5

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