slugking15 slugking15
  • 21-09-2016
  • Mathematics
contestada

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

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Аноним Аноним
  • 21-09-2016
-8+ (-27) +4+ 40=
-35 + 44=
9
You can use PEMDAS
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