jamiemar1801 jamiemar1801
  • 19-10-2018
  • Mathematics
contestada

if (a+b)^2 = 37 and ab=5 what is a^2 + b^2

Respuesta :

choixongdong
choixongdong choixongdong
  • 19-10-2018

(a+b)^2 = 37

a^2 + 2ab + b^2 = 37

Substitute ab = 5 into a^2 + 2ab + b^2 = 37

a^2 + 2(5) + b^2 = 37

a^2 + b^2 + 10 = 37

a^2 + b^2 = 27

Answer

a^2 + b^2 = 27

Answer Link
Аноним Аноним
  • 19-10-2018

[tex](a+b)^2 = 37a^2 + 2ab + b^2 = 37\\a^2 + 2(5) + b^2 = 37\\a^2 + b^2 + 10 = 37\\a^2 + b^2 = 27[/tex]


Answer: 27

Answer Link

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