Question

√98,√147,√163,√243 si √338

Answer 1

√98 = √2·7² = 7√2

√147 = √3·7² = 7√3

√163 = numar prim

√243 = √3⁵ = 9√3

√338 = √2·13² = 13√2

Answer 2

$\sqrt{98}=7\sqrt{2}$

98|2

49|7

   7|7

$\sqrt{147}= 7\sqrt{3}$

147|3

49|7

  7|7

$\sqrt{163} = \sqrt{163}$

Deoarece 163 e numar prim

$\sqrt{243}=9\sqrt{3}$

243|3=81

  81|$3^{2}$

   9|$3^{2}$

$\sqrt{338} =13\sqrt{2}$

 338|2

 169|$13^{2}$