Answers

2014-03-12T12:18:46+01:00
IF THE ROOT OF AN EQUATION ARE -2 AND +2
SO THEREFORE
FROM THIS FORMULA BELOW
WILL HAVE THAT x²-(α+β)x+αβ=0
IF α= -2 and β= +2
imputing the figure into the eq. above
x²-(-2 +(+2))x +(-2)(+2)=0
x²-(-4)x-4=0
x²+4x-4=0

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