Sagot:
# 44/9 o 4 8/9 o 4.88889 # Dahil #f (x) = 2x ^ 2-3x + 2 #, at #f (-2/3) #, ibig sabihin nito #-2/3# dapat ipasok para sa # x #.
Paliwanag:
#(-2/3)^2=(-2/3)*(-2/3)=4/9#
#4/9*2=8/9#
#-3*(-2/3)=(-2*-3)/3=6/3=2#
#2+2+8/9=4 8/9= 4.88889#
Sagot:
#f (-2/3) = 44/9 #
Paliwanag:
I-plug in #-2/3# para sa # x # sa #f (x) #:
#color (white) = f (-2/3) #
#=2(-2/3)^2-3(-2/3)+2#
#=2((-2)^2/3^2)-3(-2/3)+2#
#=2(4/9)-3(-2/3)+2#
#=(2*4)/9-3(-2/3)+2#
#=8/9-3(-2/3)+2#
#=8/9+3(2/3)+2#
# = 8/9 + kulay (pula) cancelcolor (itim) 3 (2 / kulay (pula) cancelcolor (itim) 3)
#=8/9+2+2#
#=8/9+4#
#=8/9+36/9#
#=8/9+36/9#
#=(8+36)/9#
#=44/9~~4.888889#
Maaari naming gamitin ang isang calculator upang suriin ang aming trabaho:
