MATERI:ALJABAR

Jawaban:

[1] 5m² + 7m + 12 – 2m² – 5m + 4

= 5m² – 2m² + 7m – 5m + 12 + 4

= 3m² + 2m + 16

[2] (5ab – 9b) + (15 + 6b – 4ab)

= 5ab – 4ab – 9b + 6b + 15

= ab – 3b + 15

[3] • P = 3x – 2y

• Q = x + 5y

# Soal (a)

=> P + Q

= (3x – 2y) + (x + 5y)

= 3x + x – 2y + 5y

= 4x + 3y

# Soal (b)

=> Kurangi P dari Q

= (x + 5y) – (3x – 2y)

= x + 5y – 3x + 2y

= x – 3x + 5y + 2y

= -2x + 7y

# Soal (c)

=> P dikurangkan dengan Q

= (3x – 2y) – (x + 5y)

= 3x – 2y – x – 5y

= 3x – x – 2y – 5y

= 2x – 7y

••••••••••••••••••••••♪♪♪♪•••••••••••••••••••••

Detail jawaban

• Mapel: Matematika

• Materi: Aljabar

• Kelas: VII

• Kata kunci: operasi aljabar

• Kode Soal: 2

semoga membantu,

met belajar skuy 🙂