<img src="https://tex.z-dn.net/?f=%20%7Ba%20%7D%5E%7B2%7D%20%20%2B%208a%20%2B%2015%20%3D%200" id="TexFormula1" title=" {a }^{2}

taurus [48]

3 years ago

+ 8a + 15 = 0" alt=" {a }^{2} + 8a + 15 = 0" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

NISA [10]3 years ago

8 0

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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