maggmika4kate
maggmika4kate maggmika4kate
  • 13-07-2016
  • Mathematics
contestada

Simplify the given expression.. (-3 + 2i) • (2 + i) . . a. -8 + i. b. -6 + 3i. c. -3 + 4i. d. -1 + 2i.

Respuesta :

caylus
caylus caylus
  • 13-07-2016
Hello,

(-3+2i)(2+i)=-6+4i-3i-2=-8+i

Answer A
Answer Link
taskmasters
taskmasters taskmasters
  • 16-07-2016
We are given the expression;

 (-3 + 2i) • (2 + i) 

To solve, we need to follow the rule for the basic operations which is PEMDAS.

We first distribute the terms in the parentheses.
 (-3 + 2i) • (2 + i) = -6-3i + 4i - 2 = -8 + i

Therefore, the correct answer is option A.
Answer Link

Otras preguntas

put the following list of numbers in ascending order. a)1.206 b)1.212 c)1.2105 d)1.21
For which reason would writers most likely choose to write satire
in how many ways can a student arrange 6 textbooks on a locker shelf that can hold 4 books at a time? 30 120 240 360
What is the δg for the following reaction at 25°c? so3(g) h2o(l) → h2so4(l) given: so3(g):δg= –368 kjper mole h2o(l):δg= –237 kj per mole h2so4(l):δg= –689.9 kj
$850 at 10% per annum for 4 years
Help me and I'll do the same
Sales tax in your town is 8%. How should this number be written in decimal form?
write the following inequality in slope-intercept form. –6x 2y ≤ 42 a. y ≥ 3x 21 b. y ≤ 3x – 21 c. y ≥ 3x – 21 d. y ≤ 3x 21
Which is true about models in science
in how many ways can a student arrange 6 textbooks on a locker shelf that can hold 4 books at a time? 30 120 240 360