Question

a)Efectuati calculele 2√3 x 3 √6+ √ 32 - 3 √50+ √80 : √10 =

Answer 1

$= 6 \sqrt{18} + 4 \sqrt{2} - 3 \times 5 \sqrt{2} + \frac{ \sqrt{80} }{ \sqrt{10} } =$
$6 \times 3 \sqrt{2} + 4 \sqrt{2} - 15 \sqrt{2} + \frac{4 \sqrt{5} }{ \sqrt{10} }$
$18 \sqrt{2} + 4 \sqrt{2} - 15 \sqrt{2} + 2 \sqrt{2}$
$9 \sqrt{2}$

Answer 2

Răspuns

Explicație pas cu pas:

2√3 × 3√6 + √32 - 3√50 + √80 : √10 = 9√2

= 6√18 + 4√2 - 3 × 5√2 + √8 =

= 6 × 3√2 + 4√2 - 15√2 + 2√2 =

= 18√2 + 4√2 - 15√2 + 2√2 =

= 22√2 - 13√2 =

= 9√2