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 ( 74+ )
Otras preguntas
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
What is the silk road? What valuable products were traded on the silk road?
