Question

PLEASE HELP ME!!!!

Evaluate the following expression using the values given:

Find 2r^2 + 3s^3 − r^2 + 4t^2 − r^2 if r = −2, s = −3, and t = 5.

Group of answer choices

−19

−37

27

19

Answer 1

Answer: 19

Explanation:

`2r^2 +3s^3 -r^2 +4t^2 -r^2\\\\=3s^3 +4t^2 \\\\=3(-3)^3 +4(5)^2\\\\=3(-27)+4(25)\\\\=-81+100\\\\=19`