The factors of 9 are:
1, 3, 9
The factors of 36 are:
1, 2, 3, 4, 6, 9, 12, 18, 36
The factors of 81 are:
1, 3, 9, 27, 81
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Factors are just numbers 81 can be divided by. The whole number factors are 1, 3, 9, 27, and 81
9 x 9 = 81 9 squared = 81 3 squared times 3 squared = 81
The factors of 36 are:1, 2, 3, 4, 6, 9, 12, 18, 36.The factors of 81 are:1, 3, 9, 27, 81.The common factors are:1, 3, 9.
99
If: x2 = 81 Then: x = 9 or x = -9