40.8k views
5 votes
Use factoring by difference of squares to solve the equation, x^2 - 81 = 0.

A. x = 9 or x = -11
B. +/- 9
C. +/-
(11)/(9)
D. +/-
(9)/(11)

1 Answer

4 votes
the answer is B +/- 9 !!
User Eboni
by
6.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.