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

24-03-2017

4

[tex]x^2+4x+4=(x+2)^2[/tex]

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Аноним Аноним

24-03-2017

x² + 4x + 4 = (x+2)²

Answer is 4.

Hope it helps!

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