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