Question

Evaluate the expression for s=4 and t=8

Answer 1

2st^2-s^2

s=4
t=8
2(4)(8)^2-(4)^2

pemdas
exponents
8^2=64
4^2=16
now we have
2(4)(64)-16
multiply
2(4)=8
8(64)=512
now we have
512-16
subtract
496

Answer 2

Whats the expression so you can plug those numbers in.