Question

Evaluate
2st2-s2 for s=4 and t=8

Answer 1

To evaluate the expression 2st2-s2 for s=4 and t=8, substitute the values of s and t into the expression:

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

First, calculate 8^2 = 64:

2(4)(64)-(64)

Then, calculate 2(4)(64) = 512:

512-64

Finally, subtract 64 from 512:

448

So, when s=4 and t=8, 2st2-s2 evaluates to 448.