👤

urgent!!!!!! va rogģggg mult de totttttttttttt .​

Urgent Va Rogģggg Mult De Totttttttttttt class=

Răspuns :

[tex]\it 3(2\sqrt7-3\sqrt3)-\sqrt{252}=6\sqrt7-9\sqrt3-\sqrt{36\cdot7}=6\sqrt7-9\sqrt3-6\sqrt7=-9\sqrt3\\ \\ 5(\sqrt5+2\sqrt7)-2(\sqrt7+3\sqrt5)=5\sqrt5+10\sqrt7-2\sqrt7-6\sqrt5=8\sqrt7-\sqrt5[/tex]