Hai guys,tlg tunjukkan jalan kira utk soalan ungkapan algebra ni...thanks so much!!
1.3x/8 × 3y/2x
2.10m × 2m/5n
3.2/3y × 3y*kuasa2/4x
4.2xy/9z × 18z*kuasa2/6y*kuasa2
5.3/5def × 15df*kuasa2
6.4m*kuasa3 × 15n/28mn

7.m/n÷(m-n)
8.12xy÷xy*kuasa2/6
9.(p-q)÷3p/p.
tq.tunjukkan jalan krja ya.

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2016-06-11T19:45:58+08:00
(1) 3x/8 ×  3y/2x 
     = 9xy/16x
     =9y/16

(2) 10m 
× 2m/5n
     =20m
²/5n
     =4m²/n

(3) 2/3y × 3y²/4x
    =6y²/12xy
    =y²/2xy
    =y/2x

(4) 2xy/9z × 18z²/6y²
     =36xyz²/54y²z
     =2xz/3y

(5) 3/5def × 15df²
     =45df²/5def
     =9f/e

(6) 4m³ × 15n/28mn
    =m² × 15/7
    =15m²/7

(7) m/n ÷ (m-n)
    =m/n × 1/(m-n)
    =m/(mn-n²)

(8) 12xy ÷ xy²/6
     =12xy × 6/xy²
     =72xy/xy²
     =72/y

(9) (p-q) ÷ 3p/p
     =(p-q) × 1/3
     =(p-q)/3