Question

1 √7. √72 · √14 =
Срочно!!!!!​

Answer 1

√72 = √(2^3 × 3^2) = √2^2 × 2 × 3^2 = 2√2 × 3

√7 × 2√2 × 3 × √14 = 6√98

√98 = √(2 × 7^2) = 7√2

6√98 = 6 × 7√2 = 42√2

√7 · √72 · √14 = 42√2.