hi all, the question is: obtain an inequality satisified by k if the equation below has two distinct real roots so i made that into then then i would presume the final answer is but the books answer is k > -1 why is this? thanks Mark
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Originally Posted by mark hi all, the question is: obtain an inequality satisified by k if the equation below has two distinct real roots so i made that into then then i would presume the final answer is but the books answer is k > -1 why is this? thanks Mark You need to add 4k because -4ac = -4*1*-k = +4k From there solve to give the book's answer
ha woops, yeah that was a stupid mistake. thanks though
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