Respuesta :

sqdancefan
The first selection is the correct one.

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a₁ = -7
a₂ = 4*a₁ = 4*(-7) = -28
a₃ = 4*a₂ = 4*(-28) = -112
a₄ = 4*a₃ = 4*(-112) = -448
a₅ = 4*a₄ = 4*(-448) = -1792
a₆ = 4*a₅ = 4*(-1792) = -7168