- Thread starter acemi123
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Yes, with discriminant it must be solved. The answer is ''for all real numbers'', but I wonder why? I need to be sure about it. Any explained suggest?Hello, and welcome to FMH!

In order for a quadratic equation to have two distinct roots, what must be true of the discriminant?

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Are there any real values of \(\displaystyle a\) for which \(\displaystyle a^2+4\) is negative?The answer is ''for all real numbers'', but I wonder why? . Any explained suggest?