please help me solve this thanks

Answer:
-206
Step-by-step explanation:
The expression got 2 unknown, since the value of the two unknown is also given, what you need to do is to substitute x = -10, y = 1/5 into the expression,
= 3(-10)/25(1/5) - 10(-10)^2(1/5)
= -6 -200
= -206