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4(2b+5)
b^2 + 8b + 7 factors to (b + 7)(b + 1)
8b = -65 so b = -8.125
8b
13b !
8b^2 -9b +1 8b^2 -8b -b +1 8b(b-1) - 1(b-1) (8b-1)(b-1)
8b = e - 12n, possibly.
6a + (7b - 4a - 8b) = (6a - 4a) + (7b - 8b) = 2a - b
22b + 3
11a+11b
-28am + 17b
8b -2a
2(a + 4b)