Answer:
9 (9a²-8)(x+y)
81xa²-72x+81ya²-72y
Step-by-step explanation:
simplify 27a x 2 ( x + y ) x3 to 162a ( x + y )
162a(x+y)-36(x+y)x2
simplify 36(x+y) x2 to 72(x+y)
162a(x+y)-72(x+y)
