Evaluate

2st^2-s^2 for s=4 and t=8.

To evaluate 2st^2 - s^2 for s=4 and t=8, let's substitute the given values into the expression.

So, plugging in s=4 and t=8, we have:

2(8)(8^2) - 4^2
= 2(8)(64) - 16
= 1024 - 16
= 1008

Therefore, 2st^2 - s^2 evaluated for s=4 and t=8 is equal to 1008.

To evaluate 2st^2 - s^2 for s=4 and t=8, follow these steps:

Step 1: Replace s with 4 and t with 8 in the given expression.

2(8)(8^2) - (4^2)

Step 2: Simplify the exponents.

2(8)(64) - 16

Step 3: Perform the multiplications.

1024 - 16

Step 4: Subtract.

1008

Therefore, 2st^2 - s^2, when s is 4 and t is 8, equals 1008.