Help! Use the graph of the function f(x) to answer each question. Use ∞ , -∞ or DNE where appropriate. Explain if DNE. (I will be giving 72 points if properly answered, thank you so much)

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

3382-299=3383- ? fill in the blank?

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?