Re: can't for the life of me undestand this
According to my memory and this page
A double root is when the parabola just touches the x axis instead of crossing it. If the equation were to cross the x axis at -6 and 5 then those would be your answers. If the equation touches the x axis at 3 but doesn't cross it then the answer would be double root at 3.
Hopefully that helps
Why did the chicken cross the road?
So that its subjects will view it with admiration, as a chicken which has the daring and courage to boldly cross the road,
but also with fear, for whom among them has the strength to contend with such a paragon of avian virtue? In such a manner is the princely
chicken's dominion maintained. ~Machiavelli
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