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1.Amounts donated by Mr.Lal and Mr.Sohan...

1.Amounts donated by Mr.Lal and Mr.Sohan to an orphanage are represented by the expressions `(2a^(2)-3b^(2)+6ab)` and`(5b^(2)-2ab+3a^(2))` respectively. (a) Find the expression for total amount donated by them.Also,when a=100,b=150 find the total amount.

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