(69+21)(69+20) how to do this?
Anonymous:
90X89=8010
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Answered by
3
(69+21)(69+20)
=90×89
=8010
Hope it helps!!!
=90×89
=8010
Hope it helps!!!
Correct answer ...
it is right
Answered by
2
this is Ur answer.....
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PLS MARK MY ANSWER AS BRILLIANEST
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The but I want it using identity
Yeah it can be solve by identity also ...
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