torid1220 torid1220

02-10-2018
Mathematics

contestada

Factor:

x^2 -xy -42y^2

Respuesta :

kudzordzifrancis kudzordzifrancis

02-10-2018

Two factors of -42 that will add up to -1 are

[tex]6,-7[/tex]
We use these factors to split the middle terms

[tex] {x}^{2} + 6xy - 7xy - 42 {y}^{2} [/tex]
[tex]x(x + 6y) - 7y(x + 6y)[/tex]
The factors are
[tex](x + 6y)(x - 7y)[/tex]

Answer Link

Otras preguntas

(Select all that apply.) Choose the parts of the body which incorporate cartilage. adult skull ears nose larynx mouth teeth trachea

If you know that 1% of a population has a certain disease. A test was made. This test is positive in 95% of the people with the disease and is also (falsely) po

When a food-contact surface is in constant use, it should be cleaned every _____. two hours day 30 minutes four hours

Which of these terms represent the increasing importance of inter-regional trade and have made countries such as Mexico more dependent on global corporations?

Hey, Could someone help on 9-11 please. Thank you!

In today’s modern world communism is not present in many countries, during the industrial revolution it was introduced and would lead to the eventual Soviet Uni

explain the reason for places to receive the same amount of heat from the sun

please help dont need working out thanks.

Brett wants to conduct a survey about who stays for after-school activities at his school. Who should he ask? His friends on the bus Every 10th student entering

Don’t show your __________ while on board a ___________ ship. homophones, ie; mail, male