binad binad
  • 22-06-2018
  • Mathematics
contestada

what number must you add to complete the square? x^2 +4 =23
A. 4
B. 8
C. 16
D. 2

Respuesta :

allenns allenns
  • 22-06-2018
A. 4 

to complete the square, take half of the the second number and square it
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