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Verifying that Complex Numbers are Solutions to an Equation

If the solution to an equation is imaginary or irrational, it takes a bit more effort to check. Replace x by each given number to verify the following statement.

Both 2+3i and 2-3i satisfy x^2 -4x+13=0

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Let us check 2+3i ...

Solution Summary

It is verified that complex numbers are the roots of an equation.