1WiseGurl
1WiseGurl 1WiseGurl
  • 11-12-2018
  • Mathematics
contestada

plz help, I don't get it

plz help I dont get it class=

Respuesta :

danielferreyra12
danielferreyra12 danielferreyra12
  • 11-12-2018


Step-by-step explanation:

[tex](a+b)^{2} =a^{2} +2ab+b^{2}[/tex]

e.g.

[tex](x+9)^{2} =x^2+2(x)(9)+81[/tex]

[tex](x+9)^{2} =x^2+18x+81[/tex]                            


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