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4 votes
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

User Ashante
by
7.7k points

2 Answers

3 votes

Answer:

Option: d is the correct answer.

d. Square of a Binomial

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.

User Benjamin Trent
by
7.7k points
4 votes
square of a binomial, 3^2 + 2*3*6 +6*2 = 81
option d is right
hope this helps

User Bensw
by
7.2k points

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