Question

Evaluate the following expression using the values given:

Find 2r2 + 3s3 - r2 + 4t2 - r2 if r = -2, s = -3, and t = 5.

Answer 1

Okay, we showed you one of these. We're going to employ the surgeon's motto:

"See one, do one, teach one"

\[2r^2+3s^3-r^2+4t^2-r^2\]I would suggest first collecting like terms, so there are fewer terms to evaluate

Answer 2

thanks

Answer 3

what do you have after collecting like terms?

Answer 4

but what s the answer though?