Find 2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5. a. −19 b. −37 c. 27 d. 19 Ive done it about 4 times and still haven't gotten the right answer.

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Find 2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5. a. −19 b. −37 c. 27 d. 19 Ive done it about 4 times and still haven't gotten the right answer.

Mathematics
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The numbers after the variables are exponents
Can you show your work here and probably you or I might catch your mistake?
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|dw:1434076454961:dw|
I saw that you did not evaluate \[3(-3)^3\] properly. You should've gotten -27, but you got 9.
But that is what I got with my own work. I just used a calculator after simplifying the exponents a bit.
Do you kinda get it now?
oh yeah i see where i messed up now thank you
You're welcome :)

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