Answer:
(8x - 9y)2
Step-by-step explanation:
64x2−144xy+81y2
Equation at the end of step 1:
((64 • (x2)) - 144xy) + 34y2
The Equation at the end of step 2:
(26x2 - 144xy) + 34y2
Step 3:
7/8 - 1/2
= 0.37
hope it helps!