What is the factored form of this expression? x2 + 9x + 16
O (X - 4)(x + 4)
O (x+4)2
O (x + 3)2
The expression cannot be factored.

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Find the distance between the pair of points a(-1,8) and b(-8,4)