Member Avatar for klevis.shkembi

can sb help me?İ have to make a project....
4.power polinoms i have to find the real roots an complex root.
anybody any idea for these.
Thanks....!

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  • Latest Post Latest Post by David W

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Member Avatar for DavidB

Does your project require you to write the program to solve the polynomial, or does it just require the roots (regardless of how you got them)?

What have you done so far?

Member Avatar for David W

What do you already know about a 4th power poly... ?

Can you (differentiate and) find the max (extreme points -> if the graph of y = ax^4 + bx^3 + cx^2 +dx + e opens down) ... or min ... if it opens up ?

From the extreme points ... and it it opens up or down ... can you see if it (touches or) crosses the x-axis ( ... so will have (1 or more) real roots then ... the rest imaginary <--always in pairs ,,,

Edited by David W because: fixed comments
commented: YES i can +0
Member Avatar for rubberman

Time to get back to basic calculus I think... Gah! I have forgotten so much! :-)

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