Beriberi is caused by deficiency of:

I. x² - 33x + 270 = 0

II. y² - 41y + 414 = 0

I. 99 x² + 31 x – 110 = 0

II. 6y² - 31y + 35 = 0

I. 63x² + 146x + 80 = 0

II. 42y² + 109y + 70 = 0

I. 5x² -14x + 8 = 0   

II. 2y² + 17y  + 36 = 0    

I. 2x² - 11x + 12 = 0

II. 12y² + 29y + 15 = 0

I. x² - 4x – 21 = 0

II. y² + 12y + 20 = 0

I. y² + y – 56 = 0

II. 2x² + 11 x – 40 = 0

I. 5q = 7p + 21

II. 11q + 4p + 109 = 0

I. 63x²+ 148x + 77 = 0

II. 21y²+ 89y + 88 = 0

I. x² - 33x + 270 = 0

II. y² - 41y + 414 = 0