Assertion: complex number | /r/HasProperty | involved
Facets:
Source sentences:
text: To multiply when a complex number is involved, use one of three different methods, based on the situation: To multiply a complex number by a real number: Just distribute the real number to both the real and imaginary part of the complex number.
text: Whenever the solution to an equation yields the square root of a negative number (such as √−9), complex numbers are involved.