Question

va rog imi trebue foarte urgent sun clasa a 7 mie imi trebue a,b,c,d​ dau si coronita

Answer 1

Răspuns:

$a)(6 \sqrt{3} - 5 \sqrt{3} ) \times \sqrt{3} = \sqrt{3} \times \sqrt{3} = 3 \\ b) \sqrt{36} + \sqrt{45} = 6 + 3 \sqrt{5 } \\ c) \sqrt{5 } \times 3 \sqrt{5} = 15 \\ \sqrt{5} \times 5 \sqrt{8} = 10 \sqrt{10} \\ \sqrt{5} (3 \sqrt{5} + 5 \sqrt{8} ) = 15 + 10 \sqrt{10} \\ d)4 \sqrt{3} \times 2 \sqrt{3} = 24 \\ 2 \sqrt{6} \times 2 \sqrt{3} = 12 \sqrt{2 \\ \\ } \\ (4 \sqrt{3} - 2 \sqrt{6} ) \times 2 \sqrt{3} = 24 - 12 \sqrt{2}$