10.9k views
2 votes
Which is equivalent to (9y^2-4x)(9y^2+4x), and what type of special product is it?

2 Answers

3 votes

Answer:

B is correct

Explanation:

Which is equivalent to (9y^2-4x)(9y^2+4x), and what type of special product is it-example-1
User Englund
by
5.0k points
4 votes

\text{Use:}\ (a-b)(a+b)=a^2-b^2\\\\(a\cdot b)^n=a^n\cdot b^n\\\\(a^n)^m=a^(nm)



(9y^2-4x)(9y^2+4x)=(9y^2)^2-(4x)^2=9^2(y^2)^2-4^2x^2\\\\=81y^4-16x^2

It is the product of the sum by the difference of the same monomials

User LAS
by
4.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.