15sophie15 15sophie15

25-06-2020
Mathematics

contestada

rewrite x^2+9 as a product using complex numbers and the polynomial identity below

Respuesta :

jimrgrant1 jimrgrant1

25-06-2020

Answer:

(x + 3i)(x - 3i)

Step-by-step explanation:

Express x² + 9 as a difference of squares which factors in general as

a² - b² = (a + b)(a - b), thus

x² + 9

= x² - (3i)²

= (x + 3i)(x - 3i)

Answer Link

Otras preguntas

how do cells in multicellular organism get the resources they need to stay alive?

Do feet feel warmer on a rug than a tile floor because the rug

What is Maria's advice to Bruno after their talk?

In a class of 24 students, 25 percent of them failed a test. How many students failed the test?

a similarity between filial piety in Confucian China and citizenship in ancient Athens is?

What happens when you mix soil with water?

in any ecosystem, decomposers are important for all BUT one of the following. A) They are important in keeping the nitrogen cycle going. B) They produce most o

scrieti in franceza urmatoarele cuv pantofi poseta rochie jacheta colanti tricou

Which events led to the end of Athens's power and greatest glory? Choose all answers that are correct. A. defeat by Xerxes in the Persian Wars B. the deaths of

4 times a number is 64 what is the number