caitie418
caitie418
23-08-2016
Mathematics
contestada
2r^2+3s^3-r2+4t^2-r2
Respuesta :
jaslynx
jaslynx
23-08-2016
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
Answer is 19
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