sjharms2576
sjharms2576
02-05-2018
Mathematics
contestada
Factor completely a2 - 9a + 20
Respuesta :
TheBreeze
TheBreeze
02-05-2018
(a - 5)(a - 4)
You can check, the numbers add up, because -5 - 4 is 9, and 5 * 4 is 20
Answer Link
Professor1994
Professor1994
02-05-2018
a^2-9a+20=a^2-5a-4a+20=(a^2-5a)+(-4a+20)
a^2-9a+20=a(a^2/a-5a/a)+(-4)(-4a/(-4)+20/(-4))
a^2-9a+20=a(a-5)-4(a-5)
a^2-9a+20=(a-5)[a(a-5)/(a-5)-4(a-5)/(a-5)]
a^2-9a+20=(a-5)(a-4)
Answer Link
VER TODAS LAS RESPUESTAS ( 35+ )
Otras preguntas
Graph the function by the table. Is the function linear or nonlinear? A. Nonlinear B. Linear
This is the message, usually about life or society, that an author wishes to convey through a literary work
What is the mineral beryl used for except jeweler
Suppose that you add 10 to all of the observations in a sample. how does this change the sample mean? how does it change the sample standard deviation?
Enzymes are proteins. What would happen to the enzymes of your body if your body temperature started to rise to an abnormally high degree? A.Nothing, the enzyme
Lets say I have boiled some water in a pot to the point it turned into gas. Is that a physical or chemical change?
what may have strengthen Iroquois leaders resolve not to ally with britain
By 661AD, what areas of land did the Islamic Empire include?
Animals with backbones are called
The largest single cause of death in young children is:
