2x(x-30)(x^2-1) how did you get that from the previous line? Not possible.
2x^4-62x^2+60x
Ok, looking for roots.
by inspection, x=0, x=1 are roots
so, I see 5 as a root, and finally, -6
(2x(x+6)(x-5)(x-1))
Factor 2x^4-62x^2+60x
I get: 2x(x^3-31x+30)
2x(x-30)(x^2-1)
2x(x-30)(x-1)(x+1)
But that's wrong.
It should be (I think):
2x(x-1)(x-5)(x+6)
Please show me where I went wrong.
2 answers
Thanks!