Answer:
Explanation:
To evaluate 9x³ - 2y³ when x = 2 and y = 5, we simply substitute x = 2 and y = 5 into the expression and simplify:
9x³ - 2y³ = 9(2)³ - 2(5)³
= 9(8) - 2(125)
= 72 - 250
= -178
Therefore, 9x³ - 2y³ evaluated at x = 2 and y = 5 is -178.