it`s 81. Anything squared means timed the number you`re timing it with. For example. 7 squared= 7 times 7 3 squared= 3 times 3. Hope I helped! (^_^)
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lokiya said: 9 squared is equal to 81
When you square a number, you multiply it by itself. So, 9 squared means 9 multiplied by 9, which equals 81. In mathematical notation, 9 squared is written as 9^2 or 9 x 9.
three squared = 3^(2) = 3 x 3 = 9 The answer!!!!!
The given expression can be simplified to: 8x squared +9
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