tolong dibantu no.1 dan 3 :)

Bab Aljabar Dasar
Matematika SMP Kelas VIII

1a] 2x² + 4x + 8x² - 2x
= (2x² + 8x²) + (4x - 2x)
= 10x² + 2x

1b] 3x(2x - 3) - 2(4 - 3x)
= 6x² - 9x - 8 + 6x
= 6x² - 3x - 8

3] (4x² + 8x + 4) / (2x + 2)
= 4 (x² + 2x + 1) / (2 (x + 1))
= (2 (x + 1) (x + 1)) / (x + 1)
= 2 (x + 1)
= 2x + 2