sammietaygreen one year ago For which intervals is the function y = x^3+x^2-5x-6 increasing and decreasing?

1. anonymous

$\frac{ dy }{ dx }=3x^2+2x-5$ it is increasing if $\frac{ dy }{ dx }>0,decreasing~if~\frac{ dy }{ dx }<0$

2. sammietaygreen

Would it be A??

3. zepdrix

Hmm :d

4. sammietaygreen

Am I correct?