I don't really get what you are asking for. Can you clarify it?
Answer:
40x^3 -10x
Step-by-step explanation:
Used math-way to solve this! I'm sorry if wrong, x
Answer: x³+y³=180
Step-by-step explain: let's remember the formula x³+y³=(x+y)(x²-xy+y²) and also x³+y³=(x+y)³-3xy(x+y) then