Question

√16*8=?
Amandoi sunt sub radical

Answer 1

√(16*8) = √128 = 8√2 Am inmultit nr sub radical, dupa care am descompu nr 128 cu "bara"; ce a ramas fara pereche ramane sub radical.

Answer 2

$\sqrt{16 \times 8} = \sqrt{ {8}^{2} \times 2 } = \sqrt{8 ^{2} } \sqrt{2} = 8 \sqrt{2}$