SOLUTION: I really need help. If you could please answer these two questions for me I would be forever grateful. Find all the roots of each equation: 1. x^4-8x^3+19x^2-32x+60 2. x^5-3x^4

Question 709853: I really need help. If you could please answer these two questions for me I would be forever grateful.
Find all the roots of each equation:
1. x^4-8x^3+19x^2-32x+60
2. x^5-3x^4-8x^3-8x^2-9x-5
i tried to solve the 1st problem but it didnt work. for the second one i got these roots: x=-1(multiplicity of 2), 5, -i, i
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
1.
...easiest way is to factor this completely
write as , as , and as

..group
...factor out common

...group

now we can find roots
if ...=>...
if ...=>...
if ...=>......=>.....=>... or

2.
....write as , as , as , and as

...group

solutions:
if ...=>.....=>...

if ...=>.....=>......=>... or
if .....=>...

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