Make x the subject, fully simplify please

7y⁴= 7y²(z-3ax)

Can someone me out here and the tell me the greatest common factor

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell