How do you solve $x^{2} + 4 x = 0$ $x^2 + 4x = 0$ by completing the square?

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Answer 1 · 2016-08-09T11:04:31

$x = 0 or x = - 4$ $x=0 or x=-4$

$x^2+4x =0 or (x+2)^2-4=0 or (x+2)^2=4 or (x+2)=+-2 or x=-2+-2:. x=0 or x=-4$ [Ans]

How do you solve x^2 + 4x = 0x2+4x=0x^2 + 4x = 0 by completing the square?