triforcelegends17 triforcelegends17

06-10-2021
Mathematics

contestada

Perform the indicated operation & simplify. Express the answer as a complex number. ( 6 − 7 i ) ( − 8 + 3 i ) =___
show your work

Respuesta :

AlgebraicAardvark AlgebraicAardvark

06-10-2021

( 6 − 7 i ) ( − 8 + 3 i )

First FOIL:

( 6 − 7 i ) ( − 8 + 3 i ) = -48 + 18i + 56i -21i^2

Combine like terms

= -48 + 74i -21i^2

Convert i^2 = -1

= -48 + 74i -21(-1)

And simplify

= -48 + 74i + 21

= -27 + 74i

Answer Link

Otras preguntas

Remembering ________ is a good example of semantic memory. how to play the piano what the word chocolate means your most recent visit to the dentist how a fruit

Which expression is equivalent to x-5 / (x-5)(x-4)

What did Abraham Lincoln gain from the Lincoln-Douglas debates in spite of losing the 1858 U.S. Senate election to Stephen A. Douglas?

please help i need to pass

Why do historians consider political cartoons to be credible sources in historical inquiry

Which equation has the same solutions as the equation given below? x^2+18x+32=0 A.) (x+6)2=36. B.) (x+9)2=49. C.) (x+4)2=81. D.) (x+2)2=16.

Ancient Egypt had a social hierarchy. If the hierarchy had five levels, with the pharaoh at the top, at which level were artisans and scribes?

What are some guidelines for building knowledge and understanding?

which equation, in point-slope form, represents a line with m=-12/13 that goes through the point (21,0)

Ptolemy suggested that the Earth was at the center of the solar system. Copernicus suggested that the sun was at the center of the solar system. Which of these