bananamilk20000 bananamilk20000

11-06-2021
Mathematics

contestada

I WILL GIVE BRAINLIST AND 5 STARS
Show that (2x + i)(2x – i) = 4x² + 1

I WILL GIVE BRAINLIST AND 5 STARS Show that 2x i2x i 4x 1 class=

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

11-06-2021

Answer:

see below

Step-by-step explanation:

(2x + i)(2x – i)

FOIL

first 2x*2x =4x^2

outer -i * 2x = 2x i

inner i * 2x = 2x i

last i * -i = -i^2 and i^2 = -1 so - (i^2 ) = - (-1) = 1

Add together

4x^2 + 2xi -2x i +1

Combine like terms

4x^2 +1

Answer Link

Otras preguntas

Given the original amount and the percent of change, find the new amount. 160 bananas; 20% decrease

Which line from "A Narrow Fellow in the Grass" contains alliteration?

Which organism would be classified in the same kingdom as the hawk? A. mold B. moss C. archaea D. earthworm

Stage directions are read aloud on stage by characters. Please select the best answer from the choices provided T F

Both Pilgrims and Puritans established New World colonies to

How do you Increase 120 by 24%

Because travel was safe and Rome built good roads, Christians were enabled to spread the gospel more easily. True False True is my answer.... Is this correct?

When elements combine to form compounds does there properties change?

Which description of the impeachment process as defined by the U.S. Constitution is correct? a. The Senate can try federal officials accused of impeachable cri

Which government decision would best be handled at the state level