It is 3a(a+3) when factored
6ax2 + 6ax + 6a = 6a(x2 + x + 1)
34
12a + 6b + 9a + 14b =(12a + 9a) + (6b + 14b) =21a + 20b
(9a + 2)(9a + 2)
2a+5a+9a = 16a
a2+9a+20 = (a+4)(a+5) when factored
9a + 7b *remember to look and understand the letters!*
6ax2 + 15ax = 3ax(2x + 5)
9a+21 3(3a+7)
The simplified expression is -9a -9b.
There is nothing you can do to 9a + 5 without knowing the value of a.