Posted by ck on Sunday, December 11, 2011 at 7:54pm.
find the increasing and decreasing intervals of 4x^37x+3

precalculus  Steve, Monday, December 12, 2011 at 6:27pm
f = 4x^3  7x + 3
= (x1)(2x1)(2x+3)
If you've started working with derivatives yet, then you know that where f' > 0, f is increasing
f' = 12x^2  7
find where f' >0 and that will tell you where f is increasing.
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