ATQ, 8 + (22 + 1) = 13 13 + (32 + 1) = 23 23 + (42 + 1) = 40 40 + (52 + 1) = 66 66 + (62 + 1) = 103 13 will come in the place of 12.
I. 2b2 + 31b + 99 = 0
II. 4a2 + 8a - 45 = 0
I. 8x2- 2x – 15 = 0
II. 12y2- 17y – 40 = 0
I. x² + 11x + 24 = 0
II. y² + 17y + 72 = 0
I. 5x² - 24 x + 28 = 0
II. 4y² - 8 y - 12= 0
I. 7x² + 27x + 18 = 0
II. 19y² - 27y + 8 = 0
I. x2 + (9x/2) + (7/2) = - (3/2)
II. y2 + 16y + 63 = 0
I. 2(x+2)+ 2(-x)=5
II. (1/(y+1)+ 1/(y+5))=(1/(y+2)+ 1/(y+4))
I. 2x2– 5x – 63 = 0
II. 2y2– 7y – 72 = 0
l. 3x2 + 17x + 24 = 0
II. 2y2 + 15y + 27 = 0
I. 84x² - 167x - 55 = 0
II. 247y² + 210y + 27 = 0
