Yes. '7 squared' means 7 x 7, which equals 49.
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If you mean "real" as in, "does it actually exist as a number", then yes. If you men "real" in the mathematical sense then no. It is two imaginary numbers. ±8i to be exact.
to write in number form
The square root of seven is a real number, but it is not a whole number.
The number that is 7 more than 9 is 16. This can be calculated by adding 7 to 9, resulting in 16. In mathematical terms, this can be expressed as 9 + 7 = 16.
Well, darling, the number you're looking for is 7. Yes, honey, 7 times 7 equals 49. So, there you have it, the magic number is 7. Hope that clears things up for you!