Question

Va rog ,am nevoie urgent.Dau coroană​

Answer 1

$\bf \dfrac{2}{7} \cdot \Big(\dfrac{2}{7} \cdot \Big( \dfrac{2}{7} \cdot 343\Big)\Big)=$

$\bf \dfrac{2}{7} \cdot \Big(\dfrac{2}{7} \cdot \Big( \dfrac{2}{\not7} \cdot \not343\Big)\Big)=$

$\bf \dfrac{2}{7} \cdot \Big(\dfrac{2}{7} \cdot \Big( 2\cdot 49\Big)\Big)=$

$\bf \dfrac{2}{7} \cdot \Big(\dfrac{2}{7} \cdot 98\Big)=$

$\bf \dfrac{2}{7} \cdot \Big(\dfrac{2}{\not7} \cdot \not 98\Big)=$

$\bf \dfrac{2}{7} \cdot \Big(2\cdot 14\Big)=$

$\bf \dfrac{2}{7} \cdot 28=$

$\bf \dfrac{2}{\not 7} \cdot \not 28=$

$\bf 2 \cdot 4=$

$\boxed{\bf 8}$

Answer 2

$\frac{2}{7} \times ( \frac{2}{7} \times ( \frac{2 \times 343}{7} ) = \frac{2}{7} \times ( \frac{2}{7} \times 98) = \frac{2}{7} \times \frac{2 \times 98}{7} = \frac{2}{7} \times 28 = \frac{2 \times 28}{7} = 8$