Laneg27 Laneg27
  • 25-05-2017
  • Mathematics
contestada

Find all roots.

(x+4)(x-2) = 0

then

x(x+2)(x+5) = 0

how do you do this?

Respuesta :

WeatheringWithYou
WeatheringWithYou WeatheringWithYou
  • 25-05-2017
You are already in the last step. Using the Zero Property of Multiplication, we can determine that finding a value of x that makes one expression equal zero will make the whole equation equal zero. 

If you set x = -4 in the first equation, then 0 * -6 = 0. The equation is solved. 
So, for the first equation, x = 2 and x = -4. 

For the second equation, x = 0, x = -2, and x = -5. 
Answer Link

Otras preguntas

Why do some churches celebrate Christmas on 7 January?
Question 4 Write the name and formula of the compound made of magnesium and fluorine.
. which of the following is not important in preventing backflow of blood? a. chordae tendineae b. papillary muscles c. av valves d. endocardium
What is the real Christmas day?
What is the slope of the line? a coordinate plane with a vertical line with the equation x equals 2. a. 0 b. 1 c. undefined d. infinity
What is the earliest you can put up your Christmas tree?
what is a bit? And what is a byte?
Let ​f(x)=8-2x. Find f(-4)
Why do people put Christmas lights up so early?
according to the text, choosing a career direction and taking one step in that direction can be a useful alternative to creating a conventional career plan.