20sqrt(7) x 7sqrt(8)? whats the answer
Simplify the following: 20 sqrt(7)×7 sqrt(8)
sqrt(8) = sqrt(2^3) = 2 sqrt(2): 20 sqrt(7)×7×2 sqrt(2)
20×7 = 140: 140×2 sqrt(7) sqrt(2)
140×2 = 280: 280 sqrt(7) sqrt(2)
sqrt(7) sqrt(2) = sqrt(7×2): 280 sqrt(7×2)
7×2 = 14: Answer: |280 sqrt(14 )
