Question

81b^2-121

Answer 1

I guess you want factor, so i put some factor in your factoring question :D

The binomial can be factored using the difference of squares formula, because both terms are perfect squares. The difference of squares formula is a^(2)-b^(2)=(a-b)(a+b).
(9b-11)(9b+11)

Answer 2

(9b)^2 - (11)^2
use a^2-b^2 formula

Answer 3

yes i wanted to factor completely

Answer 4

(9b-11)(9b+11)

Answer 5

find numbers for which rational expressions can be unidentified

Answer 6

q^3-4q/q^2-4

Answer 7

\[q^3-4q \over q^2-4\]

Answer 8

I'm new to this I'm sorry

Answer 9

\[\sqrt{7x+46}= x+4\]

Answer 10

\[\sqrt[3]{23}\]