Which of the following uses the distributive property correctly?
1.) 3( x + 5) = 3 · x + 5
2.) 3( x + 5) = 3 · x - 3 · 5
3.) 3( x + 5) = 3 + 3 · 5
4.) 3( x + 5) = 3 · x + 3 · 5