Seudónimo Seudónimo
  • 24-03-2017
  • Mathematics
contestada

What number should be added to the expression x^2+4x to change it into a perfect square trinomial?



1

2

4

8

Respuesta :

konrad509
konrad509 konrad509
  • 24-03-2017
4

[tex]x^2+4x+4=(x+2)^2[/tex]
Answer Link
Аноним Аноним
  • 24-03-2017
x² + 4x + 4 = (x+2)²

Answer is 4.

Hope it helps!
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