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a )(6+[tex] \sqrt{6} [/tex] ) (3[tex] \sqrt{2} [/tex] +4[tex] \sqrt{3} [/tex]) ([tex] \sqrt{3}- \sqrt{2} [/tex] )

b)[tex]( \sqrt[3]{9}+ \sqrt[3]{3}+1) (1- \sqrt[3]{3} [/tex]


Răspuns :

(6+√6)(3√2+4√3)(√3-2)=(18√2+24√3+3√12+4√18)(√3-2)=(18√2+24√3+6√3+12√2)(√3-2)=(30√2+30√3)(√3-2)=30√6-60√2+30*3-60√3=30(√6-2√2+3-2√3)