2. Разложите на множители: 1) $$16-c^2$$; 2) $$p^2+2p+1$$; 3) $$9m^2-25$$; 4) $$36m^2+24mn + 4n^2$$.

1) $$16-c^2 = 4^2 - c^2 = (4-c)(4+c)$$ 2) $$p^2+2p+1 = (p+1)^2$$ 3) $$9m^2-25 = (3m)^2 - 5^2 = (3m - 5)(3m + 5)$$ 4) $$36m^2+24mn + 4n^2 = (6m)^2 + 2*6m*2n + (2n)^2 = (6m + 2n)^2$$ Ответ: 1) $$(4-c)(4+c)$$ 2) $$(p+1)^2$$ 3) $$(3m - 5)(3m + 5)$$ 4) $$(6m + 2n)^2$$