Masielovebug Masielovebug

19-11-2018
Mathematics

contestada

solve and simplify
3. (y^2-7y-5)-(-3y^2+3y-4)

Respuesta :

24-11-2018

[tex](y^2-7y-5)-(-3y^2+3y-4)=y^2-7y-5-(-3y^2)-3y-(-4)\\\\=y^2-7y-5+3y^2-3y+4[/tex]

combine like terms

[tex]=(y^2+3y^2)+(-7y-3y)+(-5+4)=\boxed{4y^2-10y-1}[/tex]

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