Answer:
YX and WX
Step-by-step explanation:
In an isoceles triangle, the sides WX and YX are equal which also means you can assume angle W and angle Y are also equal.
-207xy
-6x^3 - 9xy + 18x
-216x -9xy +18x
-225xy + 18x
If I'm not mistaken.
i have attached pic of the graph
i hope this helps you