-13
6A
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Divide by 6a: 6a(a + 3b)
36a2 - 60a + 25 = 36a2 - 30a - 30a + 25 = 6a(6a - 5) - 5(6a - 5) = (6a - 5)(6a - 5) = (6a - 5)2
10a-37=6a+51 -6a -6a subtract 6a from both sides and the 6a's cancel 4a-37=51 +37 +37 4a=88 /4 /4 a=22
6a
18
-6a + 8 = 2 -6a = -6 a = 1
12a2b + 6a = 6a(2ab + 1)
21a - 6a
2
6a add 21 = 27