9
step-by-step explanation:
(w – 2.5)(w + 2.5)
(–4v – 9)(–4v + 9)
-8/2y-8=5/y+4-7y+8/y^2-16
we move all terms to the left:
-8/2y-8-(5/y+4-7y+8/y^2-16)=0
we can not solve this equation