Q1) What is the nth term of 8,18,30,44,60... ? \( x^ 2 + 7x\)
Q1) What is the nth term of -2,9,26,49,78... ? \(3 x^ 2 + 2 x-7\)
Q1) What is the 19th term of 3,7,15,27,43...? \(2 x^ 2 -2 x+3\) 19th is 687
Q2) What is the nth term of -5,-8,-9,-8,-5... ? \( x^ 2 -6x\)
Q2) What is the nth term of 3,8,19,36,59... ? \(3 x^ 2 -4 x+4\)
Q2) What is the 20th term of -4,-1,6,17,32...? \(2 x^ 2 -3 x-3\) 20th is 737
Q3) What is the nth term of 3,8,15,24,35... ? \( x^ 2 + 2x\)
Q3) What is the nth term of 0,8,20,36,56... ? \(2 x^ 2 + 2 x-4\)
Q3) What is the 12th term of 2,8,20,38,62...? \(3 x^ 2 -3 x+2\) 12th is 398
Q4) What is the nth term of -9,-6,-1,6,15...? \( x^ 2 -10\)
Q4) What is the nth term of 0,11,26,45,68... ? \(2 x^ 2 + 5 x-7\)
Q4) What is the 11th term of -5,3,15,31,51...? \(2 x^ 2 + 2 x-9\) 11th is 255
Q5) What is the nth term of 5,12,21,32,45... ? \( x^ 2 + 4x\)
Q5) What is the nth term of 1,11,25,43,65... ? \(2 x^ 2 + 4 x-5\)
Q5) What is the 13th term of 5,12,25,44,69...? \(3 x^ 2 -2 x+4\) 13th is 485
Q6) What is the nth term of 9,20,33,48,65... ? \( x^ 2 + 8x\)
Q6) What is the nth term of -1,8,21,38,59... ? \(2 x^ 2 + 3 x-6\)
Q6) What is the 20th term of -12,-11,-6,3,16...? \(2 x^ 2 -5 x-9\) 20th is 691
Q7) What is the nth term of -3,0,5,12,21...? \( x^ 2 -4\)
Q7) What is the nth term of -4,4,16,32,52... ? \(2 x^ 2 + 2 x-8\)
Q7) What is the 11th term of 1,10,23,40,61...? \(2 x^ 2 + 3 x-4\) 11th is 271
Q8) What is the nth term of -4,-6,-6,-4,0... ? \( x^ 2 -5x\)
Q8) What is the nth term of 7,16,29,46,67... ? \(2 x^ 2 + 3 x+2\)
Q8) What is the 19th term of 14,28,48,74,106...? \(3 x^ 2 + 5 x+6\) 19th is 1184
Q9) What is the nth term of -5,-2,3,10,19...? \( x^ 2 -6\)
Q9) What is the nth term of 6,14,26,42,62... ? \(2 x^ 2 + 2 x+2\)
Q9) What is the 12th term of 8,17,30,47,68...? \(2 x^ 2 + 3 x+3\) 12th is 327
Q10) What is the nth term of 4,7,12,19,28...? \( x^ 2 +3\)
Q10) What is the nth term of 3,7,17,33,55... ? \(3 x^ 2 -5 x+5\)
Q10) What is the 20th term of -9,-8,-3,6,19...? \(2 x^ 2 -5 x-6\) 20th is 694