Q1) What is the nth term of 5,12,21,32,45... ? [ \( x^ 2 + 4x\) ]

Q1) What is the nth term of 4,14,28,46,68... ? [ \(2 x^ 2 + 4 x-2\) ]

Q1) What is the  15th term of -5,-3,3,13,27...? [ \(2 x^ 2 -4 x-3\) 15th is 387]

Q2) What is the nth term of 7,10,15,22,31...? [ \( x^ 2 +6\) ]

Q2) What is the nth term of -13,-12,-7,2,15... ? [ \(2 x^ 2 -5 x-10\) ]

Q2) What is the  20th term of 0,12,30,54,84...? [ \(3 x^ 2 + 3 x-6\) 20th is 1254]

Q3) What is the nth term of -3,-4,-3,0,5... ? [ \( x^ 2 -4x\) ]

Q3) What is the nth term of -2,4,16,34,58... ? [ \(3 x^ 2 -3 x-2\) ]

Q3) What is the  20th term of 0,11,26,45,68...? [ \(2 x^ 2 + 5 x-7\) 20th is 893]

Q4) What is the nth term of 8,11,16,23,32...? [ \( x^ 2 +7\) ]

Q4) What is the nth term of -10,-4,8,26,50... ? [ \(3 x^ 2 -3 x-10\) ]

Q4) What is the  18th term of -2,8,22,40,62...? [ \(2 x^ 2 + 4 x-8\) 18th is 712]

Q5) What is the nth term of -9,-16,-21,-24,-25... ? [ \( x^ 2 -10x\) ]

Q5) What is the nth term of 14,24,38,56,78... ? [ \(2 x^ 2 + 4 x+8\) ]

Q5) What is the  10th term of 4,18,38,64,96...? [ \(3 x^ 2 + 5 x-4\) 10th is 346]

Q6) What is the nth term of 10,13,18,25,34...? [ \( x^ 2 +9\) ]

Q6) What is the nth term of -7,-5,1,11,25... ? [ \(2 x^ 2 -4 x-5\) ]

Q6) What is the  10th term of 9,20,37,60,89...? [ \(3 x^ 2 + 2 x+4\) 10th is 324]

Q7) What is the nth term of -3,0,5,12,21...? [ \( x^ 2 -4\) ]

Q7) What is the nth term of -10,-9,-4,5,18... ? [ \(2 x^ 2 -5 x-7\) ]

Q7) What is the  11th term of 10,23,42,67,98...? [ \(3 x^ 2 + 4 x+3\) 11th is 410]

Q8) What is the nth term of -7,-12,-15,-16,-15... ? [ \( x^ 2 -8x\) ]

Q8) What is the nth term of 14,25,42,65,94... ? [ \(3 x^ 2 + 2 x+9\) ]

Q8) What is the  12th term of 8,18,32,50,72...? [ \(2 x^ 2 + 4 x+2\) 12th is 338]

Q9) What is the nth term of -5,-8,-9,-8,-5... ? [ \( x^ 2 -6x\) ]

Q9) What is the nth term of 6,12,24,42,66... ? [ \(3 x^ 2 -3 x+6\) ]

Q9) What is the  20th term of -9,-5,3,15,31...? [ \(2 x^ 2 -2 x-9\) 20th is 751]

Q10) What is the nth term of -1,2,7,14,23...? [ \( x^ 2 -2\) ]

Q10) What is the nth term of -9,-2,11,30,55... ? [ \(3 x^ 2 -2 x-10\) ]

Q10) What is the  15th term of 2,16,36,62,94...? [ \(3 x^ 2 + 5 x-6\) 15th is 744]