Question

what should be added to 16p^2 - 24pq to make it a perfect square​

Answer 1

Answer: 9q²

Step-by-step explanation:

16p² - 24pq = (4p)² - 2x4px3q

So we need to add (3q)²=9q², to make it perfect as

(4p-3q)² = 16p² - 24pq + 9q²