Thread: quadratic

hi can someone please show me how to find the value of x which gives the minimum value of 0 in ? i don't know the method you would use to get the answer

thanks, Mark

Originally Posted by mark

hi can someone please show me how to find the value of x which gives the minimum value of 0 in ? i don't know the method you would use to get the answer

thanks, Mark

square 3x then subtract 12x from 3x=
-3x +5 then you square that
and you should get 9x + 25= 0

thats all i got.

i'm not sure thats the right answer. the book says 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)

Originally Posted by mark

hi can someone please show me how to find the value of x which gives the minimum value of 0 in ? i don't know the method you would use to get the answer

thanks, Mark

Solve .

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


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