Plz asap i beg u replace ∗ with a monomial so that the trinomial may be represented by a perfect square: 36–12x + ∗

For this case we have the following expression:
 36-12x + *
 The value of * is given by:
 36-12x + x ^ 2
 Thus, we can rewrite the expression as a perfect square in the following way:
 36-12x + x ^ 2 = (x-6) (x-6)
 36-12x + x ^ 2 = (x-6) ^ 2
 
 The value of * is:
 * = x ^ 2

The answer is (a) 12-2(-1)(6)2(6)=12