Answer:
如果你要傻瓜知道如何做你自己的家庭作業比你最好得到的該死的這裡
Step-by-step explanation:
x = -6
x = 2
x² + 4 - 12 = 0
= (x + 6)(x - 2)
x + 6 = 0
x - 2 = 0
2/3 ..................
