4. 2x2=4
This question can not be solved
9a squared = 81a^2
2^2 + 3^2 = 4 + 9 = 13
4
4x4=16 or 2^4=16
1 squared plus 8 squared or 4 squared plus 7 squared
8 squared x 2 is equal to 128.
only when x is equal to 2
2 squared equals 4 - wherever it is found!
A^2 + B^2 = C^2 Side A squared plus Side B squared has to equal Side C squared