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 line with equation ax+by=20 passes through the points(-2,10) and (1,5)find a and b
if log28 = log4 +logx what is the value of x
Rick has a collection of 6 video games. He let's his best friend borrow 2/6 of his video game collection. Write two fracations a equivalent to this numbet. Expl
To make curtains for a living room window for a customer, you will need three pieces of fabric in the following lengths: 3 feet, 3 feet, and 5 feet. What is th
A merry-go-round makes 18 rotations in 3 minutes. What is its angular speed in rpm?
what causes the earths crust to move ?
You work at a fruit market. Bananas cost 50¢ a pound. A customer hands you a bunch of bananas that weighs 3 pounds. How much should you charge for the bunch o
Clarence brought 5 rolls of color film and 4 rolls of black - and - white film for his camera for a total of $24.00. The black - and - white cost $1.50 per roll
I would like to know if 2 kg is greater or less then 1500 g
What was significant about the new habitats Darwin visited?