L.C.M., H.C.F

1. 3(a+2) = 3 * (a + 2)
4(4-b) = 2 * 2 * (4 - b)

HCF is 1
LCM is 3 * (a + 2) * 2 * 2 * (4 - b) =
12 (a + 2) (4 - b)

2. 3a^2b = 3 * a * a * b
9a(x-b) = 3 * 3 * a * (x - b)

HCF is 3 * a = 3a
LCM is 3 * 3 * a * a * b * (x - b) =
9 a^2 (b) (x - b)


3. (a-3)(a+5) = (a - 3) * (a + 5)
(a+3)(a+5)^2 = (a + 3) * (a + 5) * (a + 5)

HCF is (a + 5)
LCM is (a - 3) * (a + 3) * (a + 5) * (a + 5) =
(a + 3) (a - 3) (a + 5)^2

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