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natima [27]
3 years ago
9

Simplify the radical

Mathematics
1 answer:
Bess [88]3 years ago
8 0
640=5×2⁷ so ⁷√640=2×⁷√5. So the expression can be simplified to 2 ⁷√6−5 ⁷√5. Note that -6=-1×6, and the 7th root of -1 is -1. This makes (-2)×(-1)=2, the coefficient of ⁷√6.
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