Posted by **anthony** on Thursday, June 24, 2010 at 4:07pm.

Simplify: sqrt (21) (sqrt(7) + sqrt(3))

a) 7 sqrt (3) + 3 sqrt(7)

b) 7 sqrt(3) + sqrt (3)

c) sqrt (210)

d) sqrt (147) + sqrt (63)''.

a

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