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 ( 48+ )
Otras preguntas
What are the zeros of (x-2)(x^2-9)
PLEASE ANSWER !!!!!!!!!!!!!!!! Matt had 5 library books. He checked 1 additional book out every week without returning any books. Which equation describes the n
what is the expression, equation, or inequality using x as your variable: The product of a number and its opposite, increased by seven
what are good names for a magazine about school.
if one angle is 113 degrees in a parallelogram, what are the THREE others.
if 9 is subtracted from two-thirds of a number the result is 7
Explain difference in appearance between a pure substance and a mixture.
What country is less than a hundred miles from the northeastern tip of Russia?
What is the equivalent fraction to 8/8
Why are commercial advertisements made?
