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 ( 63+ )
Otras preguntas
Why is man a special creature? What two worlds does he share in?
A basketball player achieves a hang time of 0.773 s in dunking the ball. What vertical height will he attain? The acceleration of gravity is 9.8 m/s^2 .
A basketball player achieves a hang time of 0.773 s in dunking the ball. What vertical height will he attain? The acceleration of gravity is 9.8 m/s^2 .
Let E and F be independent events in a sample space S with Pr[E] = 0.4 and Pr[F] = 0.2. Find Pr[EUF] A.0.60 B.0.52 C.0.40 D.0.32 E.0.08
What is being personified in the following passage? Fear had settled over the city.
why do living things need nitrogen?
why do the two elements silver and iron have different properties?
Find the value of 2 in this equation. 33- (8t) = 15
What is being personified in the following passage? Fear had settled over the city.
Why can't plants catch a cold?
