Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Question #d2faf

1 Answer

Mar 22, 2017

$-5b$

Explanation:

$5ixxbi$

$=5xxixxbxxi$

$=5xxbxxixxi$

$=5bxxi^2$

$=5bi^2$

If we are dealing with $color(blue)"complex numbers"$

$"then " i^2=(sqrt(-1))^2=-1$

$rArr5bi^2$

$=5bxx(-1)$

$=-5b$

Related questions

See all questions in Complex Number Plane

Impact of this question

1359 views around the world

You can reuse this answer
Creative Commons License