Question

What must be added to 16x^2 + 24x + 2 to make it a perfect square​

Answer 1

Answer:

7 must be added

Step-by-step explanation:

Adding 7, the expression becomes :

$16 {x}^{2} + 24x + 9$

This expression can be factorised as :

$(4x + 3)^{2}$

, which is a perfect square.