Question

Помогите пожалуйста!

Answer 1

5(3–y) 5
--------------- = ---------
(3–y)(3+y) 3+y

(m–2n) 1
-------------------- = ------------
(m–2n)(m+2n) m+2n

x(x^2–64)=0
x1=0
x^2=64
x2=8
x3= –8