perla713 perla713
  • 04-03-2014
  • Mathematics
contestada

Simplify (7-5i)(-3+9i)-(5+6i)^2

Respuesta :

Mecka123
Mecka123 Mecka123
  • 04-03-2014
(-21 + 63i + 15i - 45i^2) - (25 + 60i + 36i^2) =

(-21 + 78i + 45) - (-11 + 60i) =

24 + 78i - 60i + 11 =

35 + 18i
Answer Link

Otras preguntas

The length of Marshall's poster is 2 times its width. If the perimeter is 72 inches, what is the area of the poster?
a ball is tossed vertically upward rises, reaches it's highest point, and then falls back to its starting point. during the time, the acceleration of the ball a
A. Rice costs $1.33 per kilogram. How much will 1.3 kg of rice cost? B. Milk costs $.71 per liter. How many liters can you buy with $3.00 C. How are part (a) a
What number is halfway between 3000 and 4000
this gas makes up close to one fourth of the air surrounding earth
A spinner is divided into 16 sections.3 sections are red 6 are blue 5 are purple and 2 are orange. If you spin the spinner what is the probability that you will
what are the effects of global warming
one meter is approximately equal to 39.39 inches. about how many inches are in 5 meter
how must a projectile be launched in order to maximize its range?
work out the parallelogram of base 6cm and height 8cm