Pembahasan Kunci Jawaban Matematika Kelas 8 Halaman 15 Kurikulum Merdeka Soal Nomor 1 - 5 Lengkap

Baca Juga: CEK! Kunci Jawaban Matematika Kelas 8 Halaman 15 Kurikulum Merdeka Penguatan 1

Jawaban:

1. 2x + 3y + 7x + 5y
= 2x + 7x + 3y + 5y
= 9x + 8y

2. –4a + 8b – 2a – 5b
= (-4-2)a + (8-5)b
= -6a + 3b

3. 5a² + a²
= 6a²

4. 3x² – 6x + 1– 2x² + 4x
= (3-2)x2 -6x + 4x +1
= x² – 2x + 1

5. (7a + b) + (–9a + 8b)
= (7-9)a + (1+8)b
= -2a + 9b

Baca Juga: Kunci Jawaban Matematika Kelas 8 Halaman 24 Kurikulum Merdeka SMP Bab 1 Soal Ringkasan

6. (–3x²– 4x) + (5x² – x)
= (-3+5)x2 -4x-x
= 2x2 - 5x

7. (8x – 6y) – (2x + 4y)
= (8-6)x - (6+4)y
= 2x - 10y