Question

23. The value of 9 square
– 1 is equal to​

Answer 1

Answer:

80

Step-by-step explanation:

9²=81

9²-1=81-1=80

Answer 2

Answer:

Ur ans is 80

Step-by-step explanation:

9 square = 81

9 square - 1

81 - 1 = 80

Hope this will help u