Question

Ayudaa doy coronitaa​

Answer 1

25a^2 - 9c^2 = (5a + 3c) + (5a - 3c)

a^4 - x^4 = (a^2 + x^2)(a^2 - x^2)

16 - 81a^2 = 4^2 - (9a)^2 = (4 + 9a)(4 - 9a)

49m^2 - 100m^6 = (7m + 10m^3)(7m - 10m^3)