(4a + 6b) x (2a - 2b)
the answer would be 8a2 + 4ab - 12b2
The answer is Angle Bisector.
I think this because if it were to be perpendicular the triangle would have to be congruent in SSS theorem or other.
I hope this helps!
so yull do math I'm guna do different number just plug these in for.your numbers 225/(375+x)=25
cross multiply land solve900-375 x=525 then cheak
225/(375+525) = .25