express x^2 - 5x + 1/4 in the form (x-a)^2 - b
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Originally Posted by johnsmith666 express x^2 - 5x + 1/4 in the form (x-a)^2 - b You have already posted this question, reposting is not a good way to get help.
Have you tried the question? How far can you get?
Have you done 'completing the square' in lessons yet?
Try expanding (x-a)^2 - b and comparing coefficients with x^2 -5x +1/4 .
the question is testing you to figure out what the values of 'a' and 'b' are.
You must be able to multiply out to find them.
By doing this, you will first see what 'a' is, then you can find 'b'.
do you understand this step
as mentioned "completing the square"
Originally Posted by johnsmith666 express x^2 - 5x + 1/4 in the form (x-a)^2 - b
But if you don't learn how to find those values, John,
you'll be just as stuck the next time.
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