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saifoo.khan
How about factoring? f(x) = 2x3 – 9x + 3.
LAgrange!! PLEASE help.
the real problem is how to find the zeros of this equation and we have to explain that in steps.
i mean in sentences.
i dont need solutions, just HOW TO/
I set the function to zero Then i factored and got two terms. Next i applied the zero product property and i found the roots, by that i mean that i set each term term to zero and solved for x
Are you sure it's 2x^3 – 9x + 3? The roots are nasty. but suppose they are r1, r2, r3, then of course 2x^3 – 9x + 3 = 2(x-r1)(x-r2)(x-r3)
Yes that's this. :/
You probably should try finding the roots by using some numerical methods, which will give you approximated values of the roots.
If I were you, I would start by plotting the polynomial to help me have a general view of the function and where the zeros might be. Then, I would use a method like Newton's method to approximate the roots.
now saifoo can do this he is smart =)