a) 5(x-y)(x+y)
б) a(m-n)(m+n)
в) 2a(x-y)(x+y)
Объяснение:
a) 5x^2 - 5y^2 = 5(x^2-y^2) = 5(x-y)(x+y)
б) am^2 - an^2 = a(m^2-n^2) = a(m-n)(m+n)
в) 2ax^2 - 2ay^2 = 2a(x^2-y^2) = 2a(x-y)(x+y)
