Question

Which is equivalent to (9 y squared minus 4 x)(9 y squared + 4 x), and what type of special product is it?

Answer 1

Step-by-step explanation:

Given that:-

(9 y squared minus 4 x)(9 y squared + 4 x)

=>(9y^2-4x)(9y^2+4x)

This is in the form of the special product

(a+b)(a-b).

Here a=9y^2 and b=4x

We know that:-

(a+b)(a-b)=a^2-b^2

(9y^2-4x)(9y^2+4x)=(9y^2)^2-(4x)^2

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

(here ^ means power)

Answer 2

Answer:

81y^2-26x^2 is the answer for your question