SOLUTION: The equation x⁴-2x�-16x-15 has four roots. If two of the roots are real and equal to x=-1 and x=3, by a process of long division and solving a quadratic equation find the t

Question 475872: The equation x⁴-2x�-16x-15 has four roots. If two of the roots are real and equal to x=-1 and x=3, by a process of long division and solving a quadratic equation find the two complex roots
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
given:

and

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Complex roots come in pairs
of the form
and
I can factor out

I can use quadratic formula now

1st root
and

2nd root

SOLUTION: The equation x&#8308;-2x�-16x-15 has four roots. If two of the roots are real and equal to x=-1 and x=3, by a process of long division and solving a quadratic equation find the t

SOLUTION: The equation x⁴-2x�-16x-15 has four roots. If two of the roots are real and equal to x=-1 and x=3, by a process of long division and solving a quadratic equation find the t