What is the product of 6the square root of 7. • 2the square root of 21.? Simplify if possible
Choices:
8
12
84
D
6sqrt(7) * 2sqrt(21) =
12 sqrt ( 7 * 21) =
12 sqrt ( 7 * 7 * 3) =
12 * 7 sqrt(3) =
84 sqrt(3)
