# If #x=1+i# is a factor of #ax^2+bx+c# then what is another factor?

c)

I'll presume that you meant "zero" or "root" when you said "factor."

Generally speaking, zeros in any polynomial with real coefficients are either real or occur in pairs of complex conjugates.

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If (x = 1 + i) is a factor of (ax^2 + bx + c), then its complex conjugate (x = 1 - i) will also be a factor.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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