Posted by **priya ** on Sunday, October 17, 2010 at 8:57pm.

i need help with this quretsion ; i dont know if im right, and i dontknwo what do next

question expand and simplfy:

4√7(2√3 + 3√6 - √7)

my work

= 8√21 + 12√42 -4√49

please help me

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