Question

How can you find all the turning points of a cubic function?

i know the answer ;) but i want to see if anyone is answering.

Answer 1

Take the derivative and solve for 0, then test the values?

Answer 2

eh...... not bad, i mean without calc. sorry :P

Answer 3

oh and the function _should_ be factorable, else it gets ugly

Answer 4

then expand the function and wherever x = 0 isnt it

Answer 5

nope, it's also based on degree what kind of turning point ;)