x2 +2x-31= 0

Complete the square or vertex form
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1 Answer

??????????? "vertex form" ??????????

x^2 +2x -31=0

(x-4.6568542)*(x+6.656854)=0

from quadratik equashun

-b/2a=-1

b^2-4ac=128, root=11.313708499, root/2a=5.656854249492
by

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