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Mathematics 6 Online
OpenStudy (anonymous):

x^2+4x-12=0

OpenStudy (anonymous):

\[x^2+4x-12=0\]\[(x-2)(x+6)=0\]can you finish it off ?

OpenStudy (anonymous):

@dallascowboys1998

OpenStudy (anonymous):

could you solve that by completing the square please

OpenStudy (anonymous):

\[x^2+4x-12=0\]\[x^2+4x=12\]\[x^2+4x+4=12+4\]\[x^2+4x+4=16\]\[(x+2)^2=16\]\[(x+2)=±\sqrt{16}\]\[x+2=±4\]\[x=-2±4\]\[x=~~-6,~~2\]

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

x^2-8x+15=0 solve by completing the square please

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