Answer:
D
Step-by-step explanation:
...............
.
....
Answer:

Step-by-step explanation:
Given



--- inverse
Required

For two functions f(x) and g(x) where f(x) and g(x)are inverse;

So, by comparison:

(4a + 6b) x (2a - 2b)
the answer would be 8a2 + 4ab - 12b2
53x1.2=63.6 and 2.1x82=98.4