That's how people write "raised to the power of" on this website.
7^2 means '7 squared'.
4^6 means '4 raised to the sixth power'.
(a+b+D)^3 means (a+b+D)-cubed.
This website does have a way to write actual exponents, but when you use them, they're so tiny that you can't read them clearly, and it's easy to mistake one exponent for a different one. Just one of the many, many, . . . . . . . . . . . . . many, . . . . . . . . . . . . . . . little problems with this website.
7^0=1
7^1=7
7^2=7*7=49
7^3=7 7 7=343
etc... etc...
The expression 7 n denotes an exponent, indicating how many times the base number (in this case, 7) is multiplied by itself. For example, 7 2 equals 49, and 7 3 equals 343, illustrating basic exponent calculations. Familiarity with exponent rules will enhance your mathematical problem-solving skills.
;