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Mathematics 23 Online
OpenStudy (londoncat):

For what real number k does the product (25 + ki)(3+2i) equal a real number?

OpenStudy (mrnood):

expand the brackets first write it out as 3 terms.... (hint: use FOIL)

OpenStudy (londoncat):

how do i split the 2 terms into 3

OpenStudy (mrnood):

|dw:1463750646234:dw|

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