9 sqrt 3 x 6 sqrt 7

1 answer

To simplify the expression 9 sqrt(3) x 6 sqrt(7), we can multiply the coefficients (9 x 6) and multiply the square roots (sqrt(3) x sqrt(7)).

9 x 6 = 54

sqrt(3) x sqrt(7) = sqrt(3 x 7) = sqrt(21)

Putting it all together, the simplified expression is 54 sqrt(21).