Răspuns:
4. [tex]2x^{2} yz\sqrt[5]{4xyz^{2} }[/tex]
5. [tex]\sqrt[3]{162x^{5} y^{7} z}[/tex]
Explicație pas cu pas:
4.
[tex]\sqrt[5]{128*x^{11} *y^{6}*z^{7} } = \sqrt[5]{2^{5}*2^{2}*x^{10}*x*y^{5} *y *z^{5} *z^{2} } = 2*x^{2} *y*z\sqrt[5]{4*x*y*z^{2} }[/tex]
5.
[tex]3*x*y^{2} *\sqrt[3]{6*x^{2}* y*z} = \sqrt[3]{3^{3} *x^{3} *y^{6} *6*x^{2}*y*z }[/tex]
[tex]= \sqrt[3]{162*x^{5} *y^{7} *z}[/tex]
