7. Simplify:
830 x 25 x 22a
(i) 4 x 211a x 2 - 2a
3 x 271 +1 + 9 x 33n-1
8 x 33n - 5 x 27"
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Step-by-step explanation:
i) 830 X 25 X 22a
=456500a
ii)
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