how do u solve this?

Answer:
2x-5y²
Step-by-step explanation:
x(2-5y²)
DISTRIBUTE
2x-5y²
You cant combine those two terms because it doesnt have the same variable
Answer:
-410
Step-by-step explanation:
Replace the letters with the numbers:
-5(2-5×-4^2)
Solve the -4^2 (then you get -16)
-5(2-5×-16)
Multiply -5 and -16 (to get 80)
-5(2+80)
Add 2 to 80 (to get 82)
-5×82
Multiply
-410