Sederhanakanlah. 1. 5a × 2b 2. (–6x) × 3y 3. (–x) × (–7y)

Sederhanakanlah.
1. 5a × 2b
2. (–6x) × 3y
3. (–x) × (–7y)
4. 0, 4x × (–5y)
5. 8a × 1/4 b
6. (– 2/3 x) × (–9y)

Jawaban
⑴ 10ab ⑵ –18xy
⑶ 7xy ⑷ –2xy
⑸ 2ab ⑹ 6xy

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