Answer:
3.875
Step-by-step explanation:
Add all of them then divide.
b
The rate of change is -2
f(b)-f(a) 12-2 10
---------- = ------------ = -------- = -2
b-a 1-6 -5
=(3x^3-y^2)^2 [ open it in (a-b)^2 form]
=(3x^3)^2-2.3x^3.y^2+(y^2)^2
=3^2x^3×2-6x^3y^2+y^2×2
=9x^6-6x^3y^2+y^4. ans
