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July 28, 2014

July 28, 2014

Posted by **RANDA** on Tuesday, June 21, 2011 at 12:07pm.

- math -
**MathMate**, Tuesday, June 21, 2011 at 12:49pmGiven f(x) = x2 – 12x + 36

and f(x)=25, equate:

25 = x² - 12x + 36

x²-12x+11=0

(x-11)(x-1)=0

therefore x=11 or x=1

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