Asked by Serra
Find all positive values for K for which each of the following can be factored.
x^2 + x - k
I don't even know where to begin on this one! By trial and error, I came up with -2 and -6. Are those right? Are there others?
x^2 + x - k
I don't even know where to begin on this one! By trial and error, I came up with -2 and -6. Are those right? Are there others?
Answers
Answered by
bobpursley
(1+4k) > 0
remember the quadratic formula? sqrt (b^2-4ac) ?
remember the quadratic formula? sqrt (b^2-4ac) ?
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