3×7²×11⁸ upon 21×11³
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this is the right answer
= (3×7²×11⁸)÷(21×11³)
= (3×7×7×11^{8}11
8
)÷(21×11³)
= (21×7×11^{8}11
8
)/(21×11³)
= 11^{(8-3)} (7)11
(8−3)
(7)
=11^{5}=11
5
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