express x^2 - 5x + 1/4 in the form (x-a)^2 - b

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- Jan 5th 2010, 09:36 AMjohnsmith666algerbraaa easy question :)
express x^2 - 5x + 1/4 in the form (x-a)^2 - b

- Jan 5th 2010, 09:41 AMArchie Meade

- Jan 5th 2010, 09:44 AMjohnsmith666
sorry im confuseddd :s i needed the answer in the form (x-a)^2 - b.

- Jan 5th 2010, 09:51 AMArchie Meade

Now you have both 'a' and 'b'.

Practice with that. - Jan 5th 2010, 09:55 AMArchie Meade
"a" and "b" are both constants,

they have no 'x'.

When you multiply out you get

This means

So you've got the value of 'a' now.

Use this value of 'a' to find 'b'.