Question

Does anyone know this answer??

Answer 1

6x

Explanation:

x²+9-__=(x-3)²

lets dissosiate this one (x-3)²

(x-3)²=(x-3)(x-3)

=x²-3x-3x+9

=x²-6x+9 so x²+9-6x

so the answer is 6x