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Mathematics 15 Online
OpenStudy (piercetheveil47):

Find 3x^2 - y^3 - y^3 - z if x = 3, y = -2, and z = -5.

OpenStudy (piercetheveil47):

I WAS WRITING IT WRONG THE WHOLE TIME OMG

Nnesha (nnesha):

so there suppose to be two times -y^3 ??

OpenStudy (piercetheveil47):

yes

Nnesha (nnesha):

okay same method replace variables by their values|dw:1421300093982:dw| i replaced x by 3 so you can understand so now replace all y's by -3 and z by -5

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