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complex numbers

Given that (2 −i) and (1+3i) are roots of the equation ax^4 + bx^3 + cx^2 + dx + e = 0, find the other two roots.
Original post by man111111
Given that (2 −i) and (1+3i) are roots of the equation ax^4 + bx^3 + cx^2 + dx + e = 0, find the other two roots.

Impossible without further information.

But

If a, b, c, d, e are real numbers, then the roots occur in conjugate pairs.

Hence write down the other 2 roots
Reply 2
Original post by golgiapparatus31
Impossible without further information.

But

If a, b, c, d, e are real numbers, then the roots occur in conjugate pairs.

Hence write down the other 2 roots


ok thank you for your help

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