Question

PLLLLZZZZZZZ NEED HELP!!!!!!!!!!

Answer 1

1)
answer is B) second choice

                  2
     ----------------------- =      
       x^2 + 6x + 8
                  2
     = -------------------
          (x -2)(x - 4)

if x = 2 and x = 4 then results would be undefined

2)
     3x - 1
--------------
x^2 - 4x - 45

       3x - 1
=  -------------
    (x - 9)(x+5)
x can't equal 9 and (-5)

so answer are:
A and D (first and last choices)

3)
answer is B, second choice (GCF 6x^3)

18x^5 - 6x^3        6x^3(3x^2 - 1)            3x^2 - 1
----------------- = ------------------------- = -----------------
  12x^4                  6x^3(2x)                        2x

4)
15x^3 - 10x^2           5x^2 (3x - 2)                      3x - 2
-------------------- = ------------------------ =    -------------------------
     25x^3                       5x^2(5x)                           5x

answer is B( second choice)

i don't see 5 and 6 but 7 and 8 twice

7)
          (x- 7)(2x -6)                     2(x-3)
=   -------------------------- =  --------------------
          x (x -7)(x+6)                    x(x + 6)

answer is B)(second choice)

8)

        (2x + 3)(x+8)             2x +3 
=  ------------------------ = ------------------
         (x+8)(x - 8)               x - 8

answer is C (third choice)