Answer: Check explanation
Step-by-step explanation:
a. X² - 81
X² - 81 = 0
X² = 0 + 81
X² = 81
X = ✓81
X = 9
b. b² - 49 = 0
b² = 49 + 0
b² = 49
b = ✓49
b = 7
c. 3c² - 75 = 0
3c² = 75
c² = 75/3
c² = 25
c = ✓25
c = 5
The three statements are identical as the value of the letter assigned can be gotten by finding their square roots.