SOLUTION: The equation x⁴-2x²-16x-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
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-> SOLUTION: The equation x⁴-2x²-16x-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
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Question 475872: The equation x⁴-2x²-16x-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
