Question

please help
i) (-5x)^3 - (-3x)^3
ii) (-2x+7y-9z)^2
iii) [(-4x)+(-5y)^3
iv) -a/b + -b/a + a/-b +b/-a​

Answer 1

Step-by-step explanation:

sorry question samajh nhi aa rha h

Answer 2

Answer:

questions is very hard l don't understand sorry