Factor the given polynomial 2z-22z+48 completely.

The answer should be 2 (z-8) (z-3) if the question is 2z^2-22z+48

The GCF here is 2

2 (z - 11z + 24)

i assume your question is wrong ... or you printed it inaccurately

because the 1st term should indicate the highest exponent however the 1st and 2nd terms are having the same exponent!