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

8(6a+7b)-11(2b+8a) Simplify the expression
at the bus station, buses depart at a rate of 3 every 10 minutes, at this rate, blank buses would depart in one hour.
List 5 words that contain the greek or latin root/affix of calc
How did President Lincoln respond to the attack on Fort Sumter? a. He issued a proclamation for troops b. He sent supplies to Fort Sumter c. He implemented t
Why did Ezra Pound reduce "In a Station of the Metro" from 30 lines to two?
multiply by 2, add 1. first term: 4
the atmosphere of earth does not escape into the space but remains attached to earth's surface why??
What is 12 ten thousands, 8 thousands, 14 hundreds, 7 ones in standard form
Marylou buys a package of 500 jewels to decorate 4 different pairs of jeans. She uses the same number of jewels on each pair of jeans how many jewels will she u
Your team catches 42 Mahi Mahi over 2 weeks. What is the average daily Mahi Mahi catch?