Perform the indicated multiplication. Then simplify each radical expression.?

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Perform the indicated multiplication. Then simplify each radical expression.

square root of 7 (2square root of 3 + 3square root of 7)

2006-10-27 13:07:02 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

sqrt(7) (2 sqrt(3) + 3 sqrt(7) )
2 sqrt(3) sqrt(7) + 3 sqrt(7) sqrt(7)

2 sqrt(3) sqrt(7) + 21

2006-10-27 13:13:38 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋

√7 (2√3 + 3√7)
= 2√21 + 3√49
= 2√21 + 3 x 7
= 2√21 + 21

2006-10-27 13:12:54 · answer #2 · answered by Wal C 6 · 0⤊ 0⤋