How do you factor x^2+7x+12

(x+3)(x+4)

Step-by-step explanation:

(x+3)(x+4)

this is because your two numbers after x should add to 7 and multiply to 12.

hope that makes sense!

In order to find the distance between the two points we utilize the Pythagorean Theorem,: 
Distance = Square Root ( (X difference)^2 + (Y difference)^2 )
So we have
Square Root (-5 -3)^2 + (-2 -13)^2 =
Square Root -8^2 + -15^2 =
Square Root (64 + 225)
=17

Source:
http://www.1728.org/distance.htm