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17-03-2017
Mathematics

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19. Evaluate sqr rt 7x ( sqr rt x- 7 sqr rt 7) Show your work.

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17-03-2017

√7x × (√x-7 √7)
√7x √(x-7)×7
√7x√7x-49
√7x×(7x-49)
√49x²-343x

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