abner4ever2010p2vq3q abner4ever2010p2vq3q

21-01-2018
Mathematics

contestada

Help me !! I suck at math :((
If r =-2,s=-3,t-5

Help me I suck at math If r 2s3t5 class=

Respuesta :

gustanika gustanika

21-01-2018

First, simplify
2r² + 3s² - r² + 4t² - r²
= 2r² - r² - r² + 3s² + 4t²
= 3s² + 4t²

Second, input the number
3s² + 4t²
= 3(-3)² + 4(5)²
= 3(9) + 4(25)
= 27 + 100
= 127

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