powerschelsea49 powerschelsea49

13-03-2017
Mathematics

contestada

i need help on 12 and 14 plzz and thank you

i need help on 12 and 14 plzz and thank you class=

Respuesta :

ChandrikaP ChandrikaP

13-03-2017

1)
3x^-1y^2x^3y^-1
when base are same powers add
3x^(-1+3)y^(-1+2)
3x^2y

2)
(-3) -(2)(-4)/(-2)-(-1)
(-3)+8/-2+1
-3+8/-1
5/-1
-5

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