Q1) What is the nth term of 4,10,18,28,40... ? [ $x^ 2 + 3x$ ]

Q1) What is the nth term of 2,13,30,53,82... ? [ $3 x^ 2 + 2 x-3$ ]

Q1) What is the  13th term of -9,-3,9,27,51...? [ $3 x^ 2 -3 x-9$ 13th is 459]

Q2) What is the nth term of -9,-6,-1,6,15...? [ $x^ 2 -10$ ]

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

Q2) What is the  15th term of 0,13,32,57,88...? [ $3 x^ 2 + 4 x-7$ 15th is 728]

Q3) What is the nth term of -5,-2,3,10,19...? [ $x^ 2 -6$ ]

Q3) What is the nth term of 1,11,25,43,65... ? [ $2 x^ 2 + 4 x-5$ ]

Q3) What is the  14th term of 4,14,28,46,68...? [ $2 x^ 2 + 4 x-2$ 14th is 446]

Q4) What is the nth term of 3,8,15,24,35... ? [ $x^ 2 + 2x$ ]

Q4) What is the nth term of 2,14,32,56,86... ? [ $3 x^ 2 + 3 x-4$ ]

Q4) What is the  12th term of -10,-7,0,11,26...? [ $2 x^ 2 -3 x-9$ 12th is 243]

Q5) What is the nth term of -7,-4,1,8,17...? [ $x^ 2 -8$ ]

Q5) What is the nth term of -4,3,16,35,60... ? [ $3 x^ 2 -2 x-5$ ]

Q5) What is the  10th term of 12,20,32,48,68...? [ $2 x^ 2 + 2 x+8$ 10th is 228]

Q6) What is the nth term of -6,-10,-12,-12,-10... ? [ $x^ 2 -7x$ ]

Q6) What is the nth term of -10,-6,2,14,30... ? [ $2 x^ 2 -2 x-10$ ]

Q6) What is the  11th term of 4,14,28,46,68...? [ $2 x^ 2 + 4 x-2$ 11th is 284]

Q7) What is the nth term of -5,-8,-9,-8,-5... ? [ $x^ 2 -6x$ ]

Q7) What is the nth term of 8,12,22,38,60... ? [ $3 x^ 2 -5 x+10$ ]

Q7) What is the  14th term of -2,9,26,49,78...? [ $3 x^ 2 + 2 x-7$ 14th is 609]

Q8) What is the nth term of -8,-5,0,7,16...? [ $x^ 2 -9$ ]

Q8) What is the nth term of -12,-10,-4,6,20... ? [ $2 x^ 2 -4 x-10$ ]

Q8) What is the  10th term of -7,-6,-1,8,21...? [ $2 x^ 2 -5 x-4$ 10th is 146]

Q9) What is the nth term of -5,-2,3,10,19...? [ $x^ 2 -6$ ]

Q9) What is the nth term of -9,-4,7,24,47... ? [ $3 x^ 2 -4 x-8$ ]

Q9) What is the  12th term of -12,-10,-4,6,20...? [ $2 x^ 2 -4 x-10$ 12th is 230]

Q10) What is the nth term of -7,-4,1,8,17...? [ $x^ 2 -8$ ]

Q10) What is the nth term of 1,6,17,34,57... ? [ $3 x^ 2 -4 x+2$ ]

Q10) What is the  14th term of 12,20,32,48,68...? [ $2 x^ 2 + 2 x+8$ 14th is 428]