Asked by Lindsay
Y=5x^4 -24x^3+24x^2+17 is concave down for which interval?
A) x<0
B) x>0
C) x<-2 or x>-2/5
D) x<2/5 or x>2
E) 2/5 < x < 2
I know you take the second derivative...but I keep getting stuck with something that won't factor right?
A) x<0
B) x>0
C) x<-2 or x>-2/5
D) x<2/5 or x>2
E) 2/5 < x < 2
I know you take the second derivative...but I keep getting stuck with something that won't factor right?
Answers
Answered by
Lindsay
Never mind, I got it!
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