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5 December, 01:08

F (x) = square root of x+7 g (x) = 8x-11

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  1. 5 December, 01:18
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    You do g first then replace the x in f (x) with the whole thing:

    √[ (8x - 11) + 7] = √ (8x - 4) = √[4 (2x - 1) ] - √4√ (2x - 1) = 2√ (2x - 1)
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