Final answer:
To evaluate 5x³y² when x = 2 and y = 4, substitute the values of x and y into the expression and calculate.
Step-by-step explanation:
To evaluate the expression 5x³y² when x = 2 and y = 4, we substitute the values of x and y into the expression.
So, 5(2)³(4)² = 5(8)(16) = 640.
Learn more about Evaluating expressions with given values