sederhanakan bentuk aljabar berikut

1) 3(x - 2) - 2(x + 2)
= 3x - 6 - 2x - 4
= x - 10

2) a (2a - 2) + 3(a - 2)
= 2a² - 2a + 3a - 6
= 2a² + a - 6

3) 3(x + 2) + 3(a - 2)
= 3x + 6 + 3a - 6
= 3x + 3a

4) (x + 2)(x + 2)
= x² + 4x + 4

5) (x - 3)(x - 3)
= x² - 6x + 9

6) (2a + 1)(a + 1)
= 2a² + 3a + 1

8) 3a + 3b
-----------------
a + b

= 3(a + b)
----------------
a + b

= 3