This way of calculating is a bit overcomplicated, which means it is too easy to make a mistake. During an exam there is little time to solve it, so a mistake is very probable. I think the answer should either be left as -2^24 or -64^4, or it should be calculated using the standard multiplication technique as: - 64 * 64 = 4096 - 4096 * 4096 = - 16777216
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There is a mistake here. 4x1024=4096, not 2096 as shown in solving the problem.
This way of calculating is a bit overcomplicated, which means it is too easy to make a mistake. During an exam there is little time to solve it, so a mistake is very probable. I think the answer should either be left as -2^24 or -64^4, or it should be calculated using the standard multiplication technique as:
- 64 * 64 = 4096
- 4096 * 4096 = - 16777216
64^4-32^5=
2^24-2^25=
2^24(1-2)=
-2^24
?=2^24-2^25=(-- 2^24).ans
32^1 4^16^1 4^4^4^^1 2^2^2^2^2^2^1 1^1^1^1^1^2^1 2^1 (x ➖ 2x+1).
2^24=[(2^6)^2]^2，2^6=64
64^2=（60+4）^2=3600+480+16
=4096
4096^2=(4100-4)^2=4100^2-32800+16=16777216