redhead7
redhead7 redhead7
  • 16-06-2017
  • Mathematics
contestada

Explain why !!? Please answer!?

Explain why Please answer class=

Respuesta :

LammettHash
LammettHash LammettHash
  • 16-06-2017
Equality doesn't hold because expanding the left side yields

[tex](y-7)^2=(y-7)(y-7)=y(y-7)-7(y-7)=y^2-7y-7y+49=y^2-14y+49[/tex]

while the right side is missing the linear term [tex]-14y[/tex].
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