Simplify the product. (x-4)(x+3)
a. x^2-7x-12
b. x^2+x-12
c. x^2-x-12
d. x^2-12x-1

(x - 4)(x + 3)

   = x^2 + 3x - 4x - 12

   = x^2 - x - 12 (The answer is C)

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.