SOLUTION: How will I solve in simplify form 3√7(√3 + 4√7)

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Question 373834: How will I solve in simplify form 3√7(√3 + 4√7)
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
3√7(√3 + 4√7)
=3sqrt(21)+12*7
=84+3sqrt(21)
.
Ed