Apa bentuk standar y = (x-2/3) (3 / 4x-12)?

Apa bentuk standar y = (x-2/3) (3 / 4x-12)?
Anonim

Menjawab:

# 3/4 x ^ 2 - 25/2 x + 8 #

Penjelasan:

Bagikan menggunakan FOIL

# x xx 3/4 x - 12x - (2/3 xx 3/4 x) + (12 xx 2/3) #

# = 3/4 x ^ 2 - 12x - (batal (2) / membatalkan (3) xx batal (3) / batal (4) x) + (batal (12) xx 2 / batal (3)) #

# = 3/4 x ^ 2 - 12x -1/2 x + 8 = 3/4 x ^ 2 - 25/2 x + 8 #