What two numbers multiplies to -90 and add to -8

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.