hi can someone please show me how to find the value of x which gives the minimum value of 0 in $\displaystyle (3x^2 - 12x + 5)^2$? i don't know the method you would use to get the answer

thanks, Mark

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- Sep 2nd 2009, 01:05 PMmarkquadratic
hi can someone please show me how to find the value of x which gives the minimum value of 0 in $\displaystyle (3x^2 - 12x + 5)^2$? i don't know the method you would use to get the answer

thanks, Mark - Sep 2nd 2009, 01:12 PMcountrygirl
- Sep 2nd 2009, 01:18 PMmark
i'm not sure thats the right answer. the book says $\displaystyle x = 2 \pm \sqrt {\frac{7}{3}}$ would you be able to get it from that? (the 7/3 is meant to be in one big bracket under the root sign but i don't know how to write that out)

- Sep 2nd 2009, 01:46 PMmr fantastic
Solve $\displaystyle 3x^2 - 12x + 5 = 0$.

A variety of methods are possible, including using the quadratic formula.

**Edit:**duplicate question: http://www.mathhelpforum.com/math-he...tml#post358224. Thread closed.