Answer:
x²+6x +8 ≥ 195
Step-by-step explanation:
The age of C is represented by c= x .
Building B was built two years before building C.
Age of Building B b = x+ 2
Building D was built two years before building B
Age of Building d= x+4
The product of the building B’s age and building D’s age is at least 195.
b*d ≥ 195
≥ means product is greater than or equal to 195 at least 195
Putting the values of b and d
(x+ 2) (x+4) ≥ 195
It can be further solved
x²+6x +8 ≥ 195
