SOLUTION: Please help me to find answer. By simplifying, factoring, and quadratic this is the given: 28-y2=-3y

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Please help me to find answer. By simplifying, factoring, and quadratic this is the given: 28-y2=-3y      Log On


   

Question 843442: Please help me to find answer. By simplifying, factoring, and quadratic this is the given: 28-y2=-3y
Answer by hamsanash1981@gmail.com(151) About Me  (Show Source):
You can put this solution on YOUR website!
y%5E2-3y-28=0
y%5E2-4y+%2B7y+-28+=+0
y%28y-4%29%2B7%28y+-+4%29=0
%28y-4%29+%28y%2B7%29=0
y -4 =0 y+7=0
y=4; y = -7