SOLUTION: I am working on this problem and need help .. Which of the following is the correct factorization of 36x2 - 81? a.(6x-9)(6x+9)-i picked b.(6x+9)(6x+9) c(18x-9)(3x+9) d.(6x

Algebra ->  Linear-equations -> SOLUTION: I am working on this problem and need help .. Which of the following is the correct factorization of 36x2 - 81? a.(6x-9)(6x+9)-i picked b.(6x+9)(6x+9) c(18x-9)(3x+9) d.(6x      Log On


   



Question 900337: I am working on this problem and need help ..

Which of the following is the correct factorization of 36x2 - 81?
a.(6x-9)(6x+9)-i picked
b.(6x+9)(6x+9)
c(18x-9)(3x+9)
d.(6x-9)(6x-9)

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
36x2 - 81 = (6x-9)(6x+9)
correct
F First terms
O Outside terms -54x
I Inside terms 54x
L Last terms