Q.siang
2! + 4! - 12 × 2 - 10 × 2 =..........
#teliti
pelit poin :v
2! + 4! - 12 × 2 - 10 × 2 =..........
#teliti
pelit poin :v
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2! + 4! - 12 × 2 - 10 × 2
= (2 × 1) + (4 × 3 × 2 × 1) - (12 × 2) - (10 × 2)
= 2 + 24 - 24 - 20
= 26 - 24 - 20
= 2 - 20
= -18
#Cmiiw
1.) 2! + 4! - 12 × 2 - 10 × 2
= 2! + 4! - ( 12 × 2 ) - 10 × 2
= 2! + 4! - 24 - 10 × 2
= 2! + 4! - 24 - ( 10 × 2 )
= 2! + 4! - 24 - 20
= ( 2 × 1 ) + 4! - 24 - 20
= 2 + 4! - 24 - 20
= 2 + ( 4 × 3 × 2 × 1 ) - 24 - 20
= 2 + ( 12 × 2 × 1 ) - 24 - 20
= 2 + ( 24 × 1 ) - 24 - 20
= 2 + 24 - 24 - 20
= ( 2 + 24 ) - 24 - 20
= 26 - 24 - 20
= ( 26 - 24 ) - 20
= 2 - 20
= (-18)
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