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 ( 23+ )
Otras preguntas
Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
What is the equivalent to 13/75?
Please help me translate this into French
Who became prime minister of Britain after the French and Indian War even though he lacked leadership skills?
When supply of a product increases, ceteris paribus, what happens to firms' willingness to produce and to the amount of producer surplus?
What happened to both Austria Hungary and the Ottoman Empire after world war 1
A wave travels through a medium and displaces the particles perpendicular to the direction in which the wave is traveling. This type of wave is a transverse wa
There are 3 measures of music that are played 3 times in a song. If the first measure has 8 notes, the second measure has 16 notes and the third measure has 4 n
What practice boomed in the South with the increase in the demand for cotton
The correct sequential path of a normal action potential in the heart is:
