F (x) = log2 (x + 1) g (x) = 2log2 (2x + 4) Q to find the domain and minimum value of G-F

The principle field of the function is {x + 1 > 0 {2x + 4 > 0 -------- --- {x > - 1 {x > - 2, so x > - 1 -------- G-F = log2 [(2x + 4) ^ 2 / (x + 1)] = log [4 * (x + 2) ^ 2] / (x + 1) = log2 (4) + log2 [(x + 2) ^ 2 / (x + 1)

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