Sana and abha had 100 playing cards. both of them lost 20 cards each. the product of the cards they now have is 900. how many cards did abha start with?

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Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,

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