One root of the quadratic equation x² - 12x + a = 0, is thrice the other. Find the value of a?
Q1. One root of the quadratic equation x² - 12x + a = 0, is thrice the other. Find the value of a?
Answer: 27
Explanation: If roots are r and 3r, sum = 4r = 12 so r = 3; product = 3r² = 3×9 = 27 = a.