Students helping students, join us in improving Bored of Studies by donating and supporting future students!
Your question is confusing.Twickel said:all wrong.
What are you doingTwickel said:Differentiate (x+3)(x^2+9)
I get 3x^2+6x+9
take out the three and I get x^2+2x+3 for some reason I CANT FACTORISE IT.
PLEASE HELP.
He didn't ask for that.Shoom said:Ok now factorise the fist derivative to find staionary points please.
Yeah, that proves that you just made a typo on your question.Twickel said:What the hell this from HSC 2005, 3 mark question, im sure their is a staionary point
question 4b
http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2005exams/pdf_doc/maths_05.pdf
(x + 3)(x^2 - 9)Twickel said:So what are the stat points?
( 1 , -32) and (-3 ,0 ) ?
and ( 1 , -32 ) is the min point and the ( -3 , 0 ) is max?