Respuesta :
Step-by-step explanation:
a) 81 is the answer of your question
hope it is helpful to you
(a+b)^2= a^2 +2ab+b^2
First you divide 18 by 2 which equals to 9
To complete the square multiply that number by itself
9^2=81
So the correct choice is A
First you divide 18 by 2 which equals to 9
To complete the square multiply that number by itself
9^2=81
So the correct choice is A