Respuesta :

Ammimochi

Multiply both sides by a

(a + 4)a = -3

Regroup terms

a(a + 4) = -3

Expand

a^2 + 4a = -3

Move all terms to one side

a^a + 4a + 3 = 0

Factor a^2 + 4a + 3

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

Solve for a

a = -1, -3

Otras preguntas