19. what must be subtracted from 4a² +66² Fab to get 862-4a²+5ab 20. If Rs:4000 becomes RS: 4400 after two years

Question

19. what must be subtracted from
4a² +66² Fab to get 862-4a²+5ab

20. If Rs:4000 becomes RS: 4400
after two years cute certain
rate of interest, find the rate
percentage per annum.

pls answer this two question need answers now you will be marked as brainliest and rated 5 stars and also thanked if u answer pls answer these question my humble request to you ​

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Adalynn 1 month 2021-08-13T17:41:26+00:00 1 Answer 0 views 0

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    0
    2021-08-13T17:42:55+00:00

    20. 20%

    mark me brainliiest

    thank

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