emilylarkin emilylarkin

02-10-2020
Mathematics

contestada

HELPPPP (COMLEX NUMBERS AND OPERATIONS

Write the expression 3i(2 - 5i)(4 + i) in the form a + bi.

Respuesta :

jimrgrant1 jimrgrant1

02-10-2020

Answer:

54 + 39i

Step-by-step explanation:

Given

3i(2 - 5i)(4 + i) ← expand factors using FOIL

= 3i(8 - 18i - 5i² ) → using i² = - 1

= 3i(13 - 18i) ← distribute parenthesis by 3i

= 39i - 54i²

= 54 + 39i

Answer Link

Otras preguntas

1. What has influenced Garcia's work? 2. What point does Garcia make about Act I? How does this influence the story created? 3. What makes characters complex? W

In circle L with m KLM = 82°, find the angle measure of minor arc KM. K M L O Answer: m KM= Submit Answer attempt 1 out of 2

Is my answer correct?

Find the values of x for which the denominator is equal to zero for 3x+5/x-6 . x = 6 none x = −5 x = −6

Find an ordered pair (x,y) that is a solution to the equation -x+6y=1

HELP ASAP GIVING BRAINLIEST LETS GO! In a dark hallway, you have a hard time finding your way to the bathroom. To find the bathroom, you try the following: Shou

What are the characteristics of nonavianreptiles that set them apart?

Find the gradients of lines A and B.

how much mass would pizza dough have after you flatten it The flattened dough has a different mass, but we can't determine if it is more or less. The flattene

Good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.