Q1) What is the nth term of 4,7,12,19,28...? [ $x^ 2 +3$ ]

Q1) What is the nth term of 3,5,11,21,35... ? [ $2 x^ 2 -4 x+5$ ]

Q1) What is the  19th term of -7,-5,1,11,25...? [ $2 x^ 2 -4 x-5$ 19th is 641]

Q2) What is the nth term of 8,18,30,44,60... ? [ $x^ 2 + 7x$ ]

Q2) What is the nth term of 8,14,26,44,68... ? [ $3 x^ 2 -3 x+8$ ]

Q2) What is the  13th term of 2,6,16,32,54...? [ $3 x^ 2 -5 x+4$ 13th is 446]

Q3) What is the nth term of 10,22,36,52,70... ? [ $x^ 2 + 9x$ ]

Q3) What is the nth term of 4,6,12,22,36... ? [ $2 x^ 2 -4 x+6$ ]

Q3) What is the  20th term of 10,16,28,46,70...? [ $3 x^ 2 -3 x+10$ 20th is 1150]

Q4) What is the nth term of 6,14,24,36,50... ? [ $x^ 2 + 5x$ ]

Q4) What is the nth term of 14,24,38,56,78... ? [ $2 x^ 2 + 4 x+8$ ]

Q4) What is the  16th term of 14,22,34,50,70...? [ $2 x^ 2 + 2 x+10$ 16th is 554]

Q5) What is the nth term of 5,12,21,32,45... ? [ $x^ 2 + 4x$ ]

Q5) What is the nth term of 11,24,43,68,99... ? [ $3 x^ 2 + 4 x+4$ ]

Q5) What is the  20th term of -1,11,29,53,83...? [ $3 x^ 2 + 3 x-7$ 20th is 1253]

Q6) What is the nth term of -6,-3,2,9,18...? [ $x^ 2 -7$ ]

Q6) What is the nth term of 11,25,45,71,103... ? [ $3 x^ 2 + 5 x+3$ ]

Q6) What is the  16th term of 7,11,19,31,47...? [ $2 x^ 2 -2 x+7$ 16th is 487]

Q7) What is the nth term of 7,16,27,40,55... ? [ $x^ 2 + 6x$ ]

Q7) What is the nth term of 10,17,30,49,74... ? [ $3 x^ 2 -2 x+9$ ]

Q7) What is the  16th term of -5,4,17,34,55...? [ $2 x^ 2 + 3 x-10$ 16th is 550]

Q8) What is the nth term of 10,13,18,25,34...? [ $x^ 2 +9$ ]

Q8) What is the nth term of -6,1,14,33,58... ? [ $3 x^ 2 -2 x-7$ ]

Q8) What is the  14th term of -1,13,33,59,91...? [ $3 x^ 2 + 5 x-9$ 14th is 649]

Q9) What is the nth term of 8,11,16,23,32...? [ $x^ 2 +7$ ]

Q9) What is the nth term of 3,14,31,54,83... ? [ $3 x^ 2 + 2 x-2$ ]

Q9) What is the  13th term of -5,6,23,46,75...? [ $3 x^ 2 + 2 x-10$ 13th is 523]

Q10) What is the nth term of -9,-16,-21,-24,-25... ? [ $x^ 2 -10x$ ]

Q10) What is the nth term of -8,-5,2,13,28... ? [ $2 x^ 2 -3 x-7$ ]

Q10) What is the  14th term of 4,14,28,46,68...? [ $2 x^ 2 + 4 x-2$ 14th is 446]