Directions : Read the following quadratic equation carefully and answer the…

Directions : Read the following quadratic equation carefully and answer the questions given below.

(i) x × x - 3x - √(4x²) = -6
(ii) y² - √(81y²) = -4 × 5
(iii) (z²√(625z⁶) / 5z³) + (4 × 7) = 39z
(iv) p² - (3 × 5)p = 7 × -(8)

Find the difference between the larger root of equation (iv) and the smaller root of equation (iii).