tolong bantu jawab dong bsok di kumpul . No 2 C, D dan No 3 A, B.

Keterangan: ' (pangkat) ; / (per)

2. c. = 14×2/14x'2 - 7x×3/7x×2x - 2x'2x/2x'2×7
= 28/14x'2 - 21x/14x'2 - 2x'3/14x'2
= 28-21x-2x'3/14x'2

d. = (x-1)×(2x+1)-3x/x×(x+2)×(x-1)
= 2x'2 + x-2x-1-3x/(x'2+2x)×(x-1)
= 2x'2-4x-1/x'3-x'2+2x'2-2x
= 2x'2-4x-1/x'3+x'2-2x

3. a. = (x-3)×(x+3)/x'2-x-5x+5 × x-5/x+3
= x-3/x×(x-1)-5(x-1) × (x-5)
= x-3/(x-5)×(x-1) × (x-5)
= x-3/x-1

b. = 2/y × 2/x
= 4/xy

sekian...