tanya05 tanya05

02-08-2016
Mathematics

contestada

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

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allie1120 allie1120

02-08-2016

2r2 + 3s3 − r2 + 4t2 − r2

= 19

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