Wat is de standaardvorm van y = (2x + 4) (- x + 5) (- x + 1)?

Wat is de standaardvorm van y = (2x + 4) (- x + 5) (- x + 1)?
Anonim

Antwoord:

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

Uitleg:

#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 #

Altijd eerst de moeilijkere factor, anders factor van links naar rechts.

Antwoord:

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

Uitleg:

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

#color (wit) (AAAAAAAAAAAAA) ## 2x + 4 #

#color (wit) (aaaaaaaaaa) ## xx onderstreping (-x + 5) #

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

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

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

#color (wit) (aaaaaaaa) ## xx -x + 1 #

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

#color (wit) (AAAAAAAAAAAAAAA) ## -2x ^ 2 + 6x + 20 #

#color (wit) (aaaaaaaa) ##color (blauw) (y = overline (2x ^ 3-8x ^ 2-14x + 20) #