Which is equivalent to (9y2 – 4x)(9y2 + 4x), and what type of special product is it? 81y4 – 16x2, a perfect square trinomial 81y4 – 16x2, the difference of squares 81y4 – 72xy2 – 16x2, a perfect square trinomial 81y4 – 72xy2 – 16x2, the difference of squares

81y4 -16x, the difference of squares.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.