Ex 9.5, 8 - Using (x + a) (x + b) = x^2 + (a + b) x + ab, find (i) 103

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Question 8 Using (๐‘ฅ+๐‘Ž)(๐‘ฅ+๐‘)=๐‘ฅ^2+(๐‘Ž+๐‘)๐‘ฅ+๐‘Ž๐‘ , find (i) 103 ร— 104 103 ร— 104 = (100+3) ร—(100+4) (๐‘ฅ+๐‘Ž)(๐‘ฅ+๐‘)=๐‘ฅ^2+(๐‘Ž+๐‘)๐‘ฅ+๐‘Ž๐‘ Putting ๐‘ฅ = 100 , ๐‘Ž = 3 & ๐‘ = 4 (๐‘ฅ+๐‘Ž)(๐‘ฅ+๐‘)=๐‘ฅ^2+(๐‘Ž+๐‘)๐‘ฅ+๐‘Ž๐‘ Putting ๐‘ฅ = 100 , ๐‘Ž = 3 & ๐‘ = 4

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