A: By using a cod-ratic inequality.

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Q: Why did the imaginary number turn red?

A: It ran out of i-drops.

* * *

Q: How does a ghost solve a quadratic equation?

A: By completing the scare.

* * *

Q: What did algebra math book say to the other?

A: Don't bother me I've got my own problems!

* * *

Q: Why did the polynomial plant wilt?

A: Its roots were imaginary.

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