midousuji
midousuji midousuji
  • 26-01-2015
  • Mathematics
contestada

What's one of the factors of x² - x – 6 ?

Respuesta :

Аноним Аноним
  • 26-01-2015
[tex]x^2-x-6=x^2+2x-3x-6=x(x+2)-3(x+2)\\\\=\boxed{(x+2)(x-3)}[/tex]

The factors are: (x+2) and (x-3).

[tex]x^2-x-6=x^2+\underbrace{2x-3x}_{=-x}-6\\\\=\underbrace{x\cdot\boxed{x}}_{=x^2}+\underbrace{2\cdot\boxed{x}}_{=2x}+\underbrace{\fbox{-3}\cdot x}_{=-3x}+\underbrace{\fbox{-3}\cdot2}_{=-6}=\boxed{x}(x+2)+\fbox{-3}(x+2)\\\\=(x+2)(x+(-3))=\boxed{(x+2)(x-3)}[/tex]
Answer Link

Otras preguntas

The value of the electrical charge on particles is never a whole number true or false
According to noam chomsky's theory, _____ is deaf infants' particular expression of the universal language acquisition device.
Question 6 (multiple choice) Suppose you have a 12-month loan of $1,200.00 at 12% interest to purchase a lawn mower and other gardening equipment. Each monthly
motivating factors of lenin's economic policies
solve this equation 3\5(x-10)=18-4x-1 Simplify using distributive property. Which number can be distributed across two terms inside parentheses? Answer choices
One of the side effects of ect is: a. intensification of the depression. b. psychosis. c. memory loss. d. mania.
The Brain and Spinal Cord
The Nygen family wants to put a circular fence around their pool. They want it to be exactly 11 feet from the center of the pool. How many feet of fencing do th
what is the difference between 20 and 10
The replacement of a worn or failed implant is known as