Pls help me with this question​

Interpret the following expression (5y^2-7)^3/(2y)^2

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking:

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36