Write the sum using summation notation, assuming the suggested pattern continues.

8 - 40 + 200 - 1000 +

summation of eight times negative five to the power of the quantity n plus one from n equals zero to infinity

summation of eight times negative five to the power of n from n equals zero to infinity

summation of eight times five to the power of n from n equals zero to infinity

summation of eight times five to the power of the quantity n plus one from n equals zero to infinity