20+20=
![{ { \sqrt[6]{?} }^{2} }^{2} { { \sqrt[6]{?} }^{2} }^{2}](https://tex.z-dn.net/?f=+%7B+%7B+%5Csqrt%5B6%5D%7B%3F%7D+%7D%5E%7B2%7D+%7D%5E%7B2%7D+)
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Answer:
x= -6400
i think its ryt..
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