Question

plsss dau coroanaaaaAAA​

Answer 1

Răspuns

a)

$a= 12\sqrt{3} + 36\sqrt{2}-12\sqrt{2} - 30\sqrt{3}\\a= -18\sqrt{3} + 24 \sqrt{2}$

$b= 18\sqrt{2} +25\sqrt{3} -18\sqrt{2}-22\sqrt{3}\\b= 3\sqrt{3}$

$a*b = -162+72\sqrt{6}$

b)

$a= 36\sqrt{3} -20\sqrt{3} -16\sqrt{3} +20\sqrt{3} \\a= 20\sqrt{3}$

$b= 24\sqrt{2} -20\sqrt{5} -24\sqrt{2} +18\sqrt{5} \\b= -2\sqrt{5}$

$a*b=-40\sqrt{15}$

asta e rezolvarea, nu am mai scris si ce era in carte, sper ca te-am ajutat :)