3 years ago

If you quadratic equation has two complex roots and one of the roots is x+2i, what is the second root?

1 answer:

4 0

Answer:

x-2i

Step-by-step explanation:

Complex roots come in pairs, called complex conjugates

If you have a root a+bi, the other root is a-bi

Since you have one root x+2i, the other root is x-2i

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