Answer:
yes
Step-by-step explanation:
It's true for values of m = ±9
Explanation:
for m = -9 :
[tex] {( {}^{ - } 9)}^{2} = 81[/tex]
For m = +9 :
[tex]( {}^{ + } 9) {}^{2} = 81[/tex]
hence m is -9 and +9
