Question

Calculați: -8 radical din 8
Va rog frumos

Answer 1

$\it - 8 \sqrt{8} = \\ \\ \it - 8 \sqrt{{2}^{2} \times 2} = \\ \\ \it - 8 \sqrt{{2}^{2}} \sqrt{2} = \\ \\ \it - 8 \times 2 \sqrt{2} = \\ \\ \boxed{ \it - 16 \sqrt{2} }$

Answer 2

- 8√8 = - 8√2³ = - 8√2²×2 = - 8×2√2 = - 16√2