Points of A and B or equation of A And B

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

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

In a column proof the right column states your reasons