June 29, 2009
How to determine that a function only has one zero?
jctrumannar asked:
I need to determine algebraically that the function
y=(x+2)(x^2-4x+4.01)
only has one zero at x=-2
I am supposed to use the discriminan.
I need to determine algebraically that the function
y=(x+2)(x^2-4x+4.01)
only has one zero at x=-2
I am supposed to use the discriminan.
Can someone demonstrate to me how this problem is solved?
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1 Comment on How to determine that a function only has one zero? »
June 29, 2009
steve h @ 1:02 pm:
If your problem really has “4.01″ then you have a major problem. When Y=0, X would be a decimal.
Second of all, it seems that you’re talking about a parabola but your formula isn’t for a parabola. If it’s not a parabola, that’s beyond me and you’ll have to get somebody else to help you. Sorry.