Question
12, 23, 68, 271, 1354, ?
What should come in place of the question mark (?) in the following number series?Solution
12×2-1 = 23 23×3-1 = 68 68×4-1 = 271 271×5-1 = 1354 1354×6-1 = 8123
Simplify the expression:
3x + 5y - [(7x + 3y) - (2x + y) + 4y] - xIf (a + b) = 7 and ab = 9, then find the value of (a2Â + b2).
If a =
and b = <...If x 2  – 15x + 51 = 0, then determine the value of (x – 5) + {1/(x – 5)}.
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if a2 + b2 + c2Â =Â 2(3a -5b -6c)-70 , then a-b-c = ?
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If 27 (x+y)³ − 8(x−y)³ = (x + 5y) (Ax² + By² + Cxy), then what is the value of (A+B-C)?
  = ?