81 is a square number
9, 36, 81 etc
9 * 9 = 81 and3*3*3*3 = 81
3 or -3. 32 = 9 and (-3)2 = 9 * * * * * +3 and -3 do not have the square root of 9 - they are the square roots of 9. The number 81 has the square root 9.
9
81 is a square number
9, 36, 81 etc
81 is a multiple of 3.
3 is the square root of 9. 9 is a square number. 9 is the square root of 81. 81 is a square number.
No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).
9
To square a number you multiple by itself. For instance, 3 x 3 = 9
9 * 9 = 81 and3*3*3*3 = 81
Each number is the square of the previous number.
3 or -3. 32 = 9 and (-3)2 = 9 * * * * * +3 and -3 do not have the square root of 9 - they are the square roots of 9. The number 81 has the square root 9.
9
9