Answer:
4x^2-81y^2 is NOT a perfect square trinomial, factored. You know this because if you factor this to (2x+9y)(2x-9y) then you will see that the signs between terms in the parenthesis are DIFFERENT.
Step-by-step explanation:
Taking notes as you go through the course will help you retain and process the information much better than getting "help" from a site that is probably badly named.
R= 18
d=r(2)
36=r(2)
36/2=r(2)/2
18=r
awnser:
y
=
62
/3
Step-by-step explanation:
5(6)+3y=92
