Jelaskan perkalian bentuk aljabar berikut dan sederhanakan jika mungkin
1. (2x+b-c) (3b+2c)
2. (x kuadrat+3xy+y kuadrat) (2x+y)
1. (2x+b-c) (3b+2c)
2. (x kuadrat+3xy+y kuadrat) (2x+y)
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= 6ab + 4ac + 3b² + 2bc - 3bc - 2c²
= 3b² - 2c² + 6ab + 4ac - bc
2. (x² + 3xy + y²) (2x + y)
=2x³ + x²y + 6x²y + 3xy² + 2xy² + y³
=2x³ + 7x²y + 5xy² + y³
semoga membantu...........