а) 16a - a^3 = a(16 - a^2) = a(4 - a)(4 + a)б) 25m^2 - m^2 + 25m^2n^2 - n^2 = 24m^2 + 25m^2n^2 - n^2 = m^2(24 + 25n^2) - n^2 = m^2(5 + n)(5 - n)
а) 16a - a^3 = a(16 - a^2) = a(4 - a)(4 + a)
б) 25m^2 - m^2 + 25m^2n^2 - n^2 = 24m^2 + 25m^2n^2 - n^2 = m^2(24 + 25n^2) - n^2 = m^2(5 + n)(5 - n)