3. Primi e perfetti a. Qui di seguito sono riportati alcuni numeri scomposti in fattori primi. Quali tra essi sono quadrati perfetti? Motiva la risposta. \( \begin{array}{ll}192=2^{6} \times 3 & \text { (si) (NO) } \\ 484=2^{2} \times 11^{2} & \text { (si) (NO } \\ 200=2^{3} \times 5^{2} & \text { (i) (NO } \\ 144=2^{4} \times 3^{2} & \text { (si) (NO) }\end{array} \)

\( f(x)=\sqrt{x+5} \) is \( R \) except -5

66. When Mahlet counts oranges in a basket by 5's, there are 3 oranges left over, when she counts them by 3's, there are two left over. What is the least number of oranges in the basket?

\( [(-8+6)-(-3-2)]+[4-(2+1)]= \) Elige la opción correcta. a. -6

- Show trat \( \sqrt{11} \) is an irrational numbers - Shom that \( \sqrt{7} \) is an irrational numbers

25. Expresa en la forma radical \( y \) halla el resultado Potencia con exponente fraccionario \( \begin{array}{lll}\text { a) } 64^{\frac{1}{2}} & \text { b) }(-125)^{-\frac{1}{3}} & \text { c) }\left(256 x^{3} y^{2}\right)^{\frac{4}{7}}\end{array} \)