What is the sum of X+XX+XXX+XXXX?
Last Updated: 25.06.2025 06:27

However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
Given the use of upper case, I personally would initially assume Roman numerals*, so the answer would be C (100 in present-day decimal notation)
and for binary would be
Secret Characters in Elden Ring Nightreign: How to Unlock the Revenant and Duchess - CNET
It’s a matter of interpretation.
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
11010X
To prevent ovarian cancers, fallopian tube removal is on the rise - statnews.com
What is the sum of X+XX+XXX+XXXX?
as would be assuming that these are representations of conventional numbers, in which case the answer for number bases of five or more would be
1234X