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8681.7n2 - 7n+5 - (3n+7n2)=
8682.Find the value of the function x3+2+5 at = 2
8683.the solution of the euation is: x2 +4x+3 =0
8684.If a and b are two non-zero numbers and if 69(a+b) = (69+a)b, then which of the following must be true?
8685.What is the value of x2+14x+24, when x=854?
8686.A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If the rate of interest be 10% per annum, then the man has a gain of: