Matematika

Pertanyaan

Last !!!!

Bab Menyederhanakan Pecahan Bentuk Aljabar

Kelas : 8

Kurikulum : 2006

SOAL

1) 3a+6 / 4 =

2) 12c-4d / 8p =

3) a2+ 2a + 1 / a + 1 =

4) 10ab / 5a2 + 5a =

5) a2 - 9 / a + 3 =

6) b + 2 / b2 +5b + 6 =

7) 4x2 - 16 / x - 2 =

8) 3a + 9b / a + 3b =

9) 3a2 - 4a - 4 / 2a2 - 3a - 2 =

Tolong bantu ya,,, Terima kasih ^^

NB : karena last, ada tambahan poin ^^

1 Jawaban

  • 1.3a + 6/4= 3a + 3/2.
    2. 12c - 4d/8p =12c - d/2p= 24cp-d/2p.
    3. a2 + 2a + 1/a + 1= 2a + 2a + 1/a + 1= 4a + 1/a + 1=4a²+1+a/a
    4. 10ab/5a2+5a=2b/2+5a=b+5a
    5. a × 2 - 9/a+3= 2a - 9/a+3=2a²-9+3a/a
    6. b+2/b2+5b+6=b+1/b+5b+6=6b+1/b+6=6b²+1+6b/b
    7. 4×2-1b/x-2=8-b/x-2=6-b/x=6x-b/x
    8. 3a+9b/a+3b=3a/1+9b/a+3b/1=a×3a/a×1+9b/a+a×3b/a×1=3a²/a+9b/a+3ab/a=3a²+9b+3ab/a
    9. 3a×2-4a-4/2a×2-3a-2=6a-4a-2/a×2-3a-2=-a-1/a-2=-a²+1+2a/a

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