course Mth 163
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The quadratic formula solves x in the quadratic equation it goes from ax6e+bx+c=0 to x=(-b plus or minus the square root of b^2 minus 4ac)/(2a)The discriminant is the b^2 minus 4ac part of the formula it is used to see if the answer is 0, negative, or positive
This is a good statement, and actually includes some information not specified in the required statement, but it's not the logical statement specified in the early worksheets. The correct statement involves, among other things, the words 'if and only if', and the worksheet very clearly indicates this statement and the need to memorize it.
This question can occur on tests. Review your worksheets to locate the statement, and be sure you know it.
Let me know if you can't find it.