Which equation is equivalent

(4x^2 +9) (4x^2 -9) =0

Step-by-step explanation:

16x^4 - 81 =0

Rewriting

(4x^2) ^2 - 9^2 =0

This is the difference of squares a^2 -b^2 = (a+b)(a-b)

(4x^2 +9) (4x^2 -9)=0

is there a question here?

step-by-step explanation:

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.