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 ( 55+ )
Otras preguntas
Which motion causes the apparent rising and setting of the moon each day as seen from a local location in Kansas
1. Divide. Assume the denominator does not equal zero. (12x^2y-6xy+4x^2)/(2xy)
what is 90 mi/h to mi/min
No-Freeze antifreeze mixture contains 30% alcohol. How much alcohol is there in 15 quarts of No-Freeze?
what happened to the pilgrims by 1675
how to do ā8n+4(1+5n)=ā6nā14 and must show all your steps
Can you explain why Muhammed's turning from Jerusalem and facing Mecca is called a symbolic break with the past?
What enables U.S. citizens to consume a disproportionately large amount of products compared to the rest of the world?
at the bake sale the students earned $48.76. If there were 3 students, how much did each student earn?
What is the structure of the sentence? Gracefully, the dancer took a bow and smiled before she left the stage. a. compound b. compound-complex c. simple d.
