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Naily
[24]
3 years ago
5
What substation should be used to rewrite 4x^4-21z^2+20=0
Mathematics
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answer:
elena-s
[515]
3 years ago
6
0
\left[x _{4}\right] = \left[ \frac{ - \left( -1\right) ^{\frac{3}{4}}\,\sqrt[4]{\left( 20 - 21\,z^{2}\right) }}{\sqrt[4]{4}}\right][x4]=[4√4−(−1)434√(20−21z2)]
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