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gabicbggusmao gabicbggusmao
  • 22-07-2014
  • Mathematics
Answered

How can I anwser this one? ?

4x2+16x=0

Verified Answer :

iloveonedirection
iloveonedirection iloveonedirection
  • 22-07-2014

\(4x^2+16x=0\)

\(\frac{4x^2+16x}{4} =\frac{0}{4}\)

\(x^2+4x=0\)

\(x(x+4)=0\)

\(x=0\)

\(x+4=0\)

\(x+4-4=0-4\)

\(x=-4\)


\(x=-4,0\)

Answer Link
AL2006
AL2006 AL2006
  • 22-07-2014

Divide each side of the equation by 4 :

x² + 4x = 0

Factor the left side:

x (x + 4) = 0

This equation is true if x=0 or if x=-4 , so those are the two solutions.

Answer Link

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