What is the recommended isolation distance for certified

I. x² + 16x + 63 = 0

II. y² + 2y - 15 = 0

I. 96x² + 52x - 63 = 0

II. 77y² + 155y + 72 = 0

I. 12x² + 22x + 8 = 0

II. 4y² - y − 3 = 0

One of the roots of the equation p² - (y+3)p + 6y = 0 is cube of 2. What will be the difference of other root and 'y'.

I. 6x² – 7x - 20 = 0

II. 3y² - y - 14 = 0

I. 81x - 117√x + 40 = 0

II. 81y - 225√y + 136 = 0

I. 3y²+ 16y + 16 = 0

II. 2x²+ 19x + 45 = 0

I. 2x² – 19x + 45 = 0

II. y² – 14y + 48 = 0

I. 7x + 8y = 36

II. 3x + 4y = 14

I. x² – 13x + 40 = 0

II. 2y² – 15y + 13 = 0