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Mathematics 24 Online
OpenStudy (anonymous):

I don't know how to approach this one... Help would be very much appreciated!!

OpenStudy (anonymous):

OpenStudy (zale101):

18x-x^2 is a standard quadratic equation. If you converted (18x-x^2) into the vertex form, you can easily apply u-sub.

OpenStudy (zale101):

Have you tried that?

OpenStudy (anonymous):

Ohhh just a sec! Im gonna give that a try :)

OpenStudy (anonymous):

So is it 81 - (x - 9)^2 ?

OpenStudy (zale101):

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