mf0datazz mf0datazz 03-02-2017 Mathematics contestada Use factoring by difference of squares to solve the equation, x^2 - 81 = 0. A. x = 9 or x = -11 B. +/- 9 C. +/- [tex] \frac{11}{9} [/tex] D. +/- [tex] \frac{9}{11} [/tex]
