Y = (2x + 4) (- x + 5) (- x + 1)의 표준 형식은 무엇입니까?

Y = (2x + 4) (- x + 5) (- x + 1)의 표준 형식은 무엇입니까?
Anonim

대답:

#y = -2x ^ 3-8x ^ 2-14x + 1 #

설명:

#y = (-2x ^ 2 + 10x-4x + 20) (- x + 1) #

#y = (-2x ^ 2 + 6x + 20) (- x + 1) #

#y = -2x ^ 3-2x ^ 2-6x ^ 2 + 6x-20x + 1 #

#y = -2x ^ 3-8x ^ 2-14x + 1 #

항상 더 세게 먼저 계수하고 그렇지 않으면 계수를 왼쪽에서 오른쪽으로 계수하십시오.

대답:

#color (파란색) (y = 2x ^ 3-8x ^ 2-14x + 20 #

설명:

# y = (2x + 4) (- x + 5) (- x + 1) #

#color (흰색) (aaaaaaaaaaaaa) ## 2x + 4 #

#color (흰색) (aaaaaaaaaa) ## xx 밑줄 (-x + 5) #

#color (흰색) (aaaaaaaaaaa) ## -2x ^ 2-4x #

#color (흰색) (aaaaaaaaaaaaaaaaa) ## 10x + 20 #

#color (흰색) (aaaaaaaaaaa) ##overline (-2x ^ 2 + 6x + 20) #

#color (흰색) (aaaaaaaa) ## xx -x + 1 #

#color (흰색) (aaaaaaaaaaaa) ##overline (2x ^ 3-6x ^ 2-20x) #

#color (흰색) (aaaaaaaaaaaaaaa) ## -2x ^ 2 + 6x + 20 #

#color (흰색) (aaaaaaaa) ##color (파란색) (y = 겹침 (2x ^ 3-8x ^ 2-14x + 20) #