I’ll give points + brainslist, if you don’t know don’t bother answering (:

Given the following statements, which is the best

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?