lizzethmoraless12 lizzethmoraless12

26-04-2019
Mathematics

contestada

(-4+2i)(7-2i)
Anyone know how to do this??

Respuesta :

altavistard altavistard

26-04-2019

Answer:

-24 + 22i

Step-by-step explanation:

Use the FOIL method of multiplication of binomials:

(-4+2i)(7-2i) = -28 + 14i + 8i - (-4)i²

Note that i² = -1. Thus, - (-4)i² = +4, and we then have:

-28 + 22i + 4, or

-24 + 22i

Answer Link

Otras preguntas

Ellie uses 27 feet of fabric to make 48 doll dresses. She uses the same amount of fabric to make each dress. How many yards of fabric did Ellie use to make each

Complete the sentence to explain who the family member is: Le fils de mon oncle est mon_________

Q: Sean wants to make a mixture that is 50% lemon juice and 50% lime juice. How much 100% lemon juice should he add to a juice mixture that is 30% lemon juice a

what happen in 1939 (african-italian front)

How many years did barack obama rule u.s.a?

Which is an accurate description of Roger Williams, William Penn, and James Oglethorpe? A. followers of Puritanism B. leaders of the American Revolution C. f

7x - 2y = 4 5y + 3x = 10

The cost, C, to produce b baseball bats per day is modeled by the function C(b) = 0.06b2 – 7.2b + 390. What number of bats should be produced to keep costs at a

Which is an endothermic process?

If all of the following meals total 500 calories, which of the following would be the most nutrient-dense choice? A. Hamburger, onion rings, cheesecake