The differential equation d2ydx2+7dydx−8y=0 has auxiliary equation =0 with roots Therefore there are two fundamental

Your pictures are upside down

What am i doing here. add?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.