Question

Which polynomial identity will prove that (3 + 6)^2 = 81?
a. Difference of Squares
b. Difference of Cubes
c. Sum of Cubes
d. Square of a Binomial

Answer 1

square of a binomial, 3^2 + 2*3*6 +6*2 = 81
option d is right 
hope this helps

Answer 2

Answer:

Option: d is the correct answer.

       d.   Square of a Binomial

Step-by-step explanation:

Binomial--

Binomial is a expression consisting of two terms.

( since bi basically means two)

Now here we have a identity as:

     $(3+6)^2=81$

i.e. there are two terms 3 and 6 which are separated by a addition sign and hence we square this binomial to get the desired value.

Since 6+3=9

and $(6+3)^2=9^2=81$

       Hence, the answer is:

            Square of a binomial.