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(x+a)^2+b

I really need help with x^2-5x+20 into the form (x+a)^2+b ...
(edited 8 years ago)
Original post by Phearaa
I really need help with x^2-5x+20 into the form (x+a)^2+b ...


What are your thoughts? Have you got any working so far? :smile:

It may help for you to look at previous examples you may have done.
Original post by Phearaa
I really need help with x^2-5x+20 into the form (x+a)^2+b ...


Complete the square?.....
Original post by Phearaa
I really need help with x^2-5x+20 into the form (x+a)^2+b ...


Have you learnt completing the square yet? If you have you should know to use this

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Original post by Phearaa
I really need help with x^2-5x+20 into the form (x+a)^2+b ...


Like others have said, complete the square. Let's write it out neatly first:

x2 - 5x + 20

If you haven't learned how to complete the square yet, let me know and I'll show you how to do it.

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